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Point

Line

Segment

Ray

A dot represented by a letter.

Two points determine a line. A line is never ending.

Two points determine a segment. A segment has a definite end…

Two points determine a ray. A ray has one definite end and a…

Point

A dot represented by a letter.

Line

Two points determine a line. A line is never ending.

Collinear Points

Noncollinear Points

Coplanar Points

Noncoplanar

Points that are all in one line

Points that are not in one line

Points that are in one plane

Points that are in multiple planes

Collinear Points

Points that are all in one line

Noncollinear Points

Points that are not in one line

Def. of congruent

Def. of midpoint

Segment bisector

Def. of acute

When two angles or lines are equal size. ... Ex. If line AD=BC t…

Divides a segment into two congruent segments... Ex. If f is the…

Point, line, segment, Ray, or plane, that divides a segment i…

angle less than 90*

Def. of congruent

When two angles or lines are equal size. ... Ex. If line AD=BC t…

Def. of midpoint

Divides a segment into two congruent segments... Ex. If f is the…

Lies, Rays, and Segments in Triangles

Perpendicular Bisector Theorem

Converse of the Perpendicular Bisector…

Angle Bisector Theorem

In a plane, if a point lies on the perpendicular bisector of…

In a plane, if a point is equidistant from the endpoints of a…

If a point lies on the bisector of an angle, then it is ... equi…

Lies, Rays, and Segments in Triangles

Perpendicular Bisector Theorem

In a plane, if a point lies on the perpendicular bisector of…

Perimeters of Similar Polygons

Areas of Similar Polygons

Angle-Angle (AA) Similarity Theorem

Side-Side-Side (SSS) Similarity Theorem

If two polygons are similar, then the ratio of their perimete…

If two polygons are similar, then the ratio of their areas is…

If two angles of one triangle are... congruent to two angles of…

If the corresponding side lengths of... two triangles are propor…

Perimeters of Similar Polygons

If two polygons are similar, then the ratio of their perimete…

Areas of Similar Polygons

If two polygons are similar, then the ratio of their areas is…

Classifications of Quadrilaterals

Polygon Interior Angles Theorem

Corollary to the Polygon Interior... Angl…

Polygon Exterior Angles Theorem

The sum of the measures of the interior angles of a convex n-…

The sum of the measures of the interior angles of a... quadrilat…

The sum of the measures of the exterior angles of a convex po…

Classifications of Quadrilaterals

Polygon Interior Angles Theorem

The sum of the measures of the interior angles of a convex n-…

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulate

The points on a line can be matched one to one with the real…

If B is between A and C, then AB + BC = AC. ... If AB + BC = AC,…

Consider line OB and a point A on one side of line OB. The ra…

Words: If P is in the interior of ∠RST, then the measure of ∠…

Ruler Postulate

The points on a line can be matched one to one with the real…

Segment Addition Postulate

If B is between A and C, then AB + BC = AC. ... If AB + BC = AC,…

Triangle Longer Side Theorem

Triangle Larger Angle Theorem

Triangle Inequality Theorem

Pythagorean Theorem

If one side of a triangle is longer than another side, then t…

If one angle of a triangle is larger than another angle, then…

The sum of the lengths of any two sides of a triangle is grea…

In a right triangle, the square of the length of the hypotenu…

Triangle Longer Side Theorem

If one side of a triangle is longer than another side, then t…

Triangle Larger Angle Theorem

If one angle of a triangle is larger than another angle, then…

Triangle Sum Theorem

Exterior Angle Theorem

Corollary to the Triangle Sum Theorem

Properties of Triangle Congruence

The sum of the measures of the interior angles of a triangle…

The measure of an exterior angle of a triangle is equal to th…

The acute angles of a right triangle are complementary.

Triangle congruence is reflexive, symmetric, and transitive.…

Triangle Sum Theorem

The sum of the measures of the interior angles of a triangle…

Exterior Angle Theorem

The measure of an exterior angle of a triangle is equal to th…

Def. of congruent

Def. of midpoint

Segment bisector

Def. of angle bisector

When two angles or lines are equal size. ... Ex. If line AD=BC t…

Divides a segment into two congruent segments... Ex. If f is the…

Point, line, segment, Ray, or plane, that divides a segment i…

Ray that divides an angle into two congruent adjacent angles…

Def. of congruent

When two angles or lines are equal size. ... Ex. If line AD=BC t…

Def. of midpoint

Divides a segment into two congruent segments... Ex. If f is the…

point

plane

line

collinear points

a location (undefined term)

a flat surface made up of points; has no depth and extends in…

made up of points and has no thickness or width (undefined te…

points on the same line

point

a location (undefined term)

plane

a flat surface made up of points; has no depth and extends in…

Congruent Supplements Theorem

Vertical Angles Theorem

Alternate interior angles theorem

Alternate exterior angles theorem

If two angles are supplementary to the same angle (or to the…

Vertical angles are congruent.

If two parallel lines are cut by a transversal, then the alte…

If two parallel lines are cut by a transversal, then the alte…

Congruent Supplements Theorem

If two angles are supplementary to the same angle (or to the…

Vertical Angles Theorem

Vertical angles are congruent.

Linear pair

Angle bisector

Congruent angles

Congruent segments

Two adjacent angles that form online who's noncommon sides ar…

A line, ray, or segment that divides an angle into two adjace…

Angles that have the same measure

Segments that have the same length

Linear pair

Two adjacent angles that form online who's noncommon sides ar…

Angle bisector

A line, ray, or segment that divides an angle into two adjace…

Tangent Line to a Circle Theorem

External Tangent Congruence Theorem

Arc Addition Postulate

Congruent Circles Theorem

In a plane, a line is tangent to a circle if and ony if the l…

Tangent segments from a common external point are conruent.

The measure of an arc formed by two adjacent arcs is the sum…

Two circles are congruent circles if and only if they have th…

Tangent Line to a Circle Theorem

In a plane, a line is tangent to a circle if and ony if the l…

External Tangent Congruence Theorem

Tangent segments from a common external point are conruent.

Reflexive Property of Equality (Refl.…

Symmetric Property of Equality (Symm.…

Transitive Property of Equality (Trans…

Substitution Property of Equality (Sub…

a=a

If a=b, the b=a

If a=b and b=c, the a=c

If a=b, then a may be replaced by b in any equation or expres…

Reflexive Property of Equality (Refl.…

a=a

Symmetric Property of Equality (Symm.…

If a=b, the b=a

Complementary Angles

Supplementary Angles

Adjacent Angles

Linear Pair of Angles

2 angles whose sum is always 90 degrees

2 angles whose sum is always 180 degrees

A pair of angles that share a common side, and have no common…

A pair of adjacent angles whose non-common sides form opposit…

Complementary Angles

2 angles whose sum is always 90 degrees

Supplementary Angles

2 angles whose sum is always 180 degrees

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulate

The points on a line can be matched one to one with real numb…

If B is between A & C, then AB + BC = AC

Consider Ray OB and a point A on one side of Ray OB. The rays…

If P is in the interior of <RST, then m<RST + m<RSP = m<PST

Ruler Postulate

The points on a line can be matched one to one with real numb…

Segment Addition Postulate

If B is between A & C, then AB + BC = AC

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulate

The points on a line can be matched one to one with real numb…

If B is between A & C, then AB + BC = AC

Consider Ray OB and a point A on one side of Ray OB. The rays…

If P is in the interior of <RST, then m<RST + m<RSP = m<PST

Ruler Postulate

The points on a line can be matched one to one with real numb…

Segment Addition Postulate

If B is between A & C, then AB + BC = AC

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulate

The points on a line can be matched one to one with real numb…

If B is between A & C, then AB + BC = AC

Consider Ray OB and a point A on one side of Ray OB. The rays…

If P is in the interior of <RST, then m<RST + m<RSP = m<PST

Ruler Postulate

The points on a line can be matched one to one with real numb…

Segment Addition Postulate

If B is between A & C, then AB + BC = AC

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulate

The points on a line can be matched one to one with the real…

If B is between A and C, then AB + BC = AC. ... If AB + BC = AC,…

Consider line OB and a point A on one side of line OB. The ra…

Words: If P is in the interior of ∠RST, then the measure of ∠…

Ruler Postulate

The points on a line can be matched one to one with the real…

Segment Addition Postulate

If B is between A and C, then AB + BC = AC. ... If AB + BC = AC,…

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulate

The points on a line can be matched one to one with real numb…

If B is between A & C, then AB + BC = AC

Consider Ray OB and a point A on one side of Ray OB. The rays…

If P is in the interior of <RST, then m<RST + m<RSP = m<PST

Ruler Postulate

The points on a line can be matched one to one with real numb…

Segment Addition Postulate

If B is between A & C, then AB + BC = AC

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulate

Given two points, there corresponds a unique positive number…

Given two rays, there corresponds a unique positive number ca…

Ruler Postulate

Given two points, there corresponds a unique positive number…

Segment Addition Postulate

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulate

The points on a line can be matched one to one with real numb…

If B is between A & C, then AB + BC = AC

Consider Ray OB and a point A on one side of Ray OB. The rays…

If P is in the interior of <RST, then m<RST + m<RSP = m<PST

Ruler Postulate

The points on a line can be matched one to one with real numb…

Segment Addition Postulate

If B is between A & C, then AB + BC = AC

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulate

If you take a line segment and divide it into equal segments…

If B is between A and C, then AB + BC = AC (the parts add up…

On line AB in a given plane, chose any point O between A and…

If point B lies in the interior of /_AOC, then the m/_AOB + m…

Ruler Postulate

If you take a line segment and divide it into equal segments…

Segment Addition Postulate

If B is between A and C, then AB + BC = AC (the parts add up…

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulate

The points on a line can be matched one to one with real numb…

If B is between A & C, then AB + BC = AC

Consider Ray OB and a point A on one side of Ray OB. The rays…

If P is in the interior of <RST, then m<RST + m<RSP = m<PST

Ruler Postulate

The points on a line can be matched one to one with real numb…

Segment Addition Postulate

If B is between A & C, then AB + BC = AC

Postulate 1

Postulate 2

The Ruler Postulate (Postulate 3)

The Protractor Postulate (Postulate 4)

Two points determine a unique straight line.

Three noncollinear points determine a unique plane

a. To every point on a line there corresponds exactly one rea…

a. The rays in a half rotation (180 degrees) can be numbered…

Postulate 1

Two points determine a unique straight line.

Postulate 2

Three noncollinear points determine a unique plane

Postulate(a statement that is accepted…

Postulate 2

Postulate 3, postulate 4

Postulate 5

The points on a line can be paired in a one-to-one correspond…

If B is between A and C, then AB+BC=AC

Please see the text book for diagram explanation

Through any two points there is exactly one line

Postulate(a statement that is accepted…

The points on a line can be paired in a one-to-one correspond…

Postulate 2

If B is between A and C, then AB+BC=AC

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulate

accepted rule that a ruler can find a distance

if B is between A and C, then AB + BC = AC

the measure of an angle is equal to the absolute value of the…

if P is in the interior of the angle RST, then the measure of…

Ruler Postulate

accepted rule that a ruler can find a distance

Segment Addition Postulate

if B is between A and C, then AB + BC = AC

ruler postulate

Segment Addition Postulate (Seg. Add.…

Protractor Postulate

Angle Addition Postulate

1.)points must be put on a number line... 2.)the distance betwee…

if B is between A and C, then AB+BC=AC (page 12 in book)

used to find the measure of an angle... 1.) take the absolute va…

m<AOB + m<BOC = m< AOC

ruler postulate

1.)points must be put on a number line... 2.)the distance betwee…

Segment Addition Postulate (Seg. Add.…

if B is between A and C, then AB+BC=AC (page 12 in book)

Midpoint Theorem:

Angle Bisector Theorem

Vertical Angles are congruent.

Theorem 2-4

If M is the midpoint of AB then AM = 1/2 AB and MB = 1/2 AB.

If BX is the bisector of <ABC then 1/2m<ABC and m <XBC and 1/…

<1 and <2 are vertical angles. <1 congruent to <2

If 2 lines are perpendicular, then they form congruent adjace…

Midpoint Theorem:

If M is the midpoint of AB then AM = 1/2 AB and MB = 1/2 AB.

Angle Bisector Theorem

If BX is the bisector of <ABC then 1/2m<ABC and m <XBC and 1/…

Theorem

Theorem 1

Deductive Structure

Postulate

A mathematical statement that can be proved

If two angles are right angles, then they are congruent

A system of thought in which conclusions are justified by mea…

a unproved assumption

Theorem

A mathematical statement that can be proved

Theorem 1

If two angles are right angles, then they are congruent

Postulate 1-1

Postulate 1-2

Postulate 1-3

Postulate 1-4

Through any two points there is exactly one line.

If two lines intersect, then they intersect in exactly one po…

If two planes intersect, then they intersect in exactly one l…

Through any three noncollinear points there is exactly one pl…

Postulate 1-1

Through any two points there is exactly one line.

Postulate 1-2

If two lines intersect, then they intersect in exactly one po…

Postulate 1

Postulate 2

Postulate 3

Postulate 4

Through any two points there is exactly one line

If two lines intersect they intersect in exactly one point

If two planes intersect, they intersect in exactly one line

Through any three non-collinear points there exists exactly o…

Postulate 1

Through any two points there is exactly one line

Postulate 2

If two lines intersect they intersect in exactly one point

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulate

The points on a line can be matched one to one with the real…

If B is between A and C, then AB + BC = AC. If AB + BC = AC,…

Consider ray OB and a point A on one side of of ray OB. The r…

If P is in the interior of angle of RST, then the measure of…

Ruler Postulate

The points on a line can be matched one to one with the real…

Segment Addition Postulate

If B is between A and C, then AB + BC = AC. If AB + BC = AC,…

Postulate 1- Ruler Postulate

Postulate 2- Segment Addition Postulate

Postulate 3

Postulate 4- Angle Addition Postulate

the points on a line can be paired with the real numbers in s…

ex. if B is between A and C then: AB+BC=AC

rays can be paired with the real numbers from 1-180

if a point lies in the interior of and angle, then you would…

Postulate 1- Ruler Postulate

the points on a line can be paired with the real numbers in s…

Postulate 2- Segment Addition Postulate

ex. if B is between A and C then: AB+BC=AC

ruler postulate

Segment Addition Postulate (Seg. Add.…

Protractor Postulate

Angle Addition Postulate

1.)points must be put on a number line... 2.)the distance betwee…

if B is between A and C, then AB+BC=AC (page 12 in book)

used to find the measure of an angle... 1.) take the absolute va…

m<AOB + m<BOC = m< AOC

ruler postulate

1.)points must be put on a number line... 2.)the distance betwee…

Segment Addition Postulate (Seg. Add.…

if B is between A and C, then AB+BC=AC (page 12 in book)

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulate

The points on a line can be match one to one with real number…

If B is between A and C, then AB+BC=AC. If AB+BC=AC, then B i…

Consider a point A on one side of line OB. The rays of a form…

If P is in the interior of ∠RST, then m∠RSP+m∠PST=m∠RST.

Ruler Postulate

The points on a line can be match one to one with real number…

Segment Addition Postulate

If B is between A and C, then AB+BC=AC. If AB+BC=AC, then B i…

ruler postulate

segment addition postulate

protractor postulate

angle addition postulate

the points on a line can paired in a one-to-one correspondenc…

if B is between A and C, then AB + BC = AC

given a point X on line PR, consider rays XP and XR as well a…

if point D is in the interior of angle ABC, then m angleABD +…

ruler postulate

the points on a line can paired in a one-to-one correspondenc…

segment addition postulate

if B is between A and C, then AB + BC = AC

Postulate 1 - Ruler Postulate

Postulate 2 - Segment Addition Postulate

Postulate 3 - Protractor Postulate

Postulate 4 - Angle Addition Postulate

The points on a line can be matched one to one with the real…

If B is between A and C, then AB + BC = AC ... AND ... If AB + BC =…

<AOB is equal to the absolute value of the difference between…

If B is the interior of angle AOC, then the measure of angle…

Postulate 1 - Ruler Postulate

The points on a line can be matched one to one with the real…

Postulate 2 - Segment Addition Postulate

If B is between A and C, then AB + BC = AC ... AND ... If AB + BC =…

The Distance Postulate (2-4)

The Ruler Postulate (2-5)

The Ruler Placement Postulate (2-5)

The Line Postulate

To every pair of different points there corresponds a unique…

1. One point of the line for each number... 2. One number for ea…

Given 2 Points of a line, the coordinate system can be shifte…

For every two different points there is exactly one line that…

The Distance Postulate (2-4)

To every pair of different points there corresponds a unique…

The Ruler Postulate (2-5)

1. One point of the line for each number... 2. One number for ea…

Perpendicular Bisector Theorem

Converse of the Perpendicular Bisector…

Angle Bisector Theorem

Converse of the Angle Bisector Theorem

In a plane, if a point lies on the perpendicular bisector of…

In a plane, if a point is equidistant from the endpoints of a…

If a point lies on the bisector of an angle, then it is ... equi…

If a point is in the interior of an angle and is equidistant…

Perpendicular Bisector Theorem

In a plane, if a point lies on the perpendicular bisector of…

Converse of the Perpendicular Bisector…

In a plane, if a point is equidistant from the endpoints of a…

Postulate 1-1 Through any two points,…

Postulate 1-2 If two distinct lines in…

Postulate 1-3 If two distinct _______i…

Postulate 1-4 Through any ________poin…

line

point

planes

three noncollinear

Postulate 1-1 Through any two points,…

line

Postulate 1-2 If two distinct lines in…

point

Ruler Postulate

Segment Addition Postulate

Protractor Postulate

Angle Addition Postulates

Distance between two points A and B on a line can be found by…

If B is between AC, then AB + BC = AC

Think about protractor :)

If C is the interior angle of AOD, then ∠AOD = ∠AOC + ∠COD

Ruler Postulate

Distance between two points A and B on a line can be found by…

Segment Addition Postulate

If B is between AC, then AB + BC = AC

Ruler Postulate

Segment Addition Postulate

Angle Addition Postulate

Linear Pair Postulate

The distance between points A and B, written as AB, is the ab…

If B is between A and C, then AB + BC=AC. If AB+BC=AC, then B…

If P is in the interior of (a)RST, then m(a) RSP+m(a)PST=m(a)…

If two angles form a linear pair,then they are supplementary.

Ruler Postulate

The distance between points A and B, written as AB, is the ab…

Segment Addition Postulate

If B is between A and C, then AB + BC=AC. If AB+BC=AC, then B…

points existence postulate

straight line postulate

plane postulate

flat plane postulate

space contains at least four noncoplanar points. every plane…

two points are contained in one and only one line (two points…

three noncollinear points are contained in one and only one p…

if two points are in a plane, then the line containing the po…

points existence postulate

space contains at least four noncoplanar points. every plane…

straight line postulate

two points are contained in one and only one line (two points…