# Study sets matching "geometry flashcards"

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Midsegment

Midpoint

Perpendicular Bisector

Equidistant

Connects the midpoints of two sides in a triangle. It is paral…

A point that divides a segment into two congruent pieces (in h…

A line that is perpendicular to a segment at its midpoint (cut…

The same distance

Midsegment

Connects the midpoints of two sides in a triangle. It is paral…

Midpoint

A point that divides a segment into two congruent pieces (in h…

Third Angles Theorem

Side Angle Side Theorem

Base Angles Theorem

Converse of the Base Angles Theorem

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

If two sides and the included angle of one triangle are congru…

If two sides of a triangle are congruent then the angles oppos…

If two angles of a triangle are congruent then the sides oppos…

Third Angles Theorem

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

Side Angle Side Theorem

If two sides and the included angle of one triangle are congru…

Complementary Angles

Supplementary Angles

Vertical angles

Straight Angle Pair

Angles whose measurements add up to 90

Angles whose measurments add up to 180

Always Congruent

2 Angles that form a straight line (supplementary)

Complementary Angles

Angles whose measurements add up to 90

Supplementary Angles

Angles whose measurments add up to 180

Point

Line

Line segment

Ray

A point is represented by a dot

A line extends forever in both directions

A line segment has a beginning and end point

A ray is a part of a line that has an endpoint and an end that…

Point

A point is represented by a dot

Line

A line extends forever in both directions

Equilateral Triangle

Isosceles Triangle

Angle Bisector

Altitude

Triangle in which all three sides are equal

Triangle in which two sides are equal

A line or ray that divides a angle into two congruent angles

Line segment through a vertex and perpendicular to a line cont…

Equilateral Triangle

Triangle in which all three sides are equal

Isosceles Triangle

Triangle in which two sides are equal

Incenter

Circumcenter

Altitude

Circumcenter Theorem

The point of concurrency of the angle bisectors of a triangle

The point of concurrency of the perpendicular bisectors of a t…

Segment from a vertex to opposite side and it's perpendicular…

The circumcenter of a triangle is equidistant from the vertice…

Incenter

The point of concurrency of the angle bisectors of a triangle

Circumcenter

The point of concurrency of the perpendicular bisectors of a t…

midpoint

midsegment (of a triangle)

median (of a triangle)

altitude

a point on a line segment that divides it into two equal parts…

a segment connecting the midpoints of two sides of a triangle.

a line segment joining a vertex to the midpoint of the opposin…

the height of an object or point in relation to sea level or g…

midpoint

a point on a line segment that divides it into two equal parts…

midsegment (of a triangle)

a segment connecting the midpoints of two sides of a triangle.

point

line

plane

collinear

a point is a location

a line is made up of points and has no thickness or width

a plane is a flat surface made of points that has no depth and…

points that lie on the same line

point

a point is a location

line

a line is made up of points and has no thickness or width

Point

Line

Plane

Collinear

A basic undefined term of geometry. Most points are represente…

A basic undefined term of geometry. A line is made up of point…

A basic undefined term of geometry. A plane is a flat surface…

When three or more points lie on a straight line.

Point

A basic undefined term of geometry. Most points are represente…

Line

A basic undefined term of geometry. A line is made up of point…

Congruent

Parallel

Perpendicular

Centroid

Two geometric figures with exactly the same size and shape.

Two lines in a plane that do not intersect or touch each other…

is the relationship between two lines which meet at a right an…

The center of a triangle where all medians meet.

Congruent

Two geometric figures with exactly the same size and shape.

Parallel

Two lines in a plane that do not intersect or touch each other…

midpoint

line segment

line

ray

A point of a line segment that divides it into two congruent s…

A part of a line with two endpoints

one-dimensional figure that extends infinitely in both directi…

a part of a line that starts at one endpoint and extends forev…

midpoint

A point of a line segment that divides it into two congruent s…

line segment

A part of a line with two endpoints

Parallelogram Definition

Parallelogram Theorums

Rectangle Defintion

Rectangle Theorums

A quadrilateral with two pairs of opposite sides parallel

1. Opposite sides are congruent... 2. Opposite angles are congrue…

A quadrilateral with 4 right angles

1. The diagonals in a rectangle are congruent

Parallelogram Definition

A quadrilateral with two pairs of opposite sides parallel

Parallelogram Theorums

1. Opposite sides are congruent... 2. Opposite angles are congrue…

circumcenter

perpendicular bisector

bisect

centroid

the point of concurrency of the perpendicular bisectors of a t…

a line, ray, segment, or plane that bisects a segment at a 90…

to divide into two equal parts

The point of concurrency of the medians of a triangle

circumcenter

the point of concurrency of the perpendicular bisectors of a t…

perpendicular bisector

a line, ray, segment, or plane that bisects a segment at a 90…

Segment Addition

Midpoint

Distance Formula

Midpoint Formula

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

If you have the midpoint, then the segments on each side are e…

Segment Addition

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

Midpoint

If you have the midpoint, then the segments on each side are e…

Alternate interior angles

alternate exterior angles

corresponding angles

distance from a point to a line

nonadjacent angles that lie on opposite sides of the transvers…

lie on opposite sides of the transversal outside the lines

lie on the same side of the trasversal one inside the lines an…

shortest segment from a point to a line is perpendicular to th…

Alternate interior angles

nonadjacent angles that lie on opposite sides of the transvers…

alternate exterior angles

lie on opposite sides of the transversal outside the lines

base angles theorem

equilateral triangle theorem

height of a triangle

altitude of a triangle

In an isosceles triangle, the angles are opposite to the congr…

In an equilateral triangle, all three angles are congruent wit…

The length of the altitude of a triangle

A segment drawn from a vertex to the opposite side, perpendicu…

base angles theorem

In an isosceles triangle, the angles are opposite to the congr…

equilateral triangle theorem

In an equilateral triangle, all three angles are congruent wit…

Line

Point

Plane

Collinear points

A geometric figure that extends in two directions without endi…

The basic of all geometric figures... has no size or shape... repres…

A set of points that suggest a flat surface ... is infinite ... no t…

Points on the same line

Line

A geometric figure that extends in two directions without endi…

Point

The basic of all geometric figures... has no size or shape... repres…

Polygon

Quadrilateral

Square

Parallelogram

A closed shape with no intersecting lines.

A 4-sided polygon

- Has 4 sides of equal length... - Has two pairs of parallel side…

- Has two pairs of parallel sides... - Has two pairs of equivalen…

Polygon

A closed shape with no intersecting lines.

Quadrilateral

A 4-sided polygon

Polygon Sum Formula (variable "n")

What is the sum of the exterior angles…

What is the sum of the angles of a deca…

What is the measure of an angle in a re…

180(n-2)

360 degrees

1440 degrees

120 degrees

Polygon Sum Formula (variable "n")

180(n-2)

What is the sum of the exterior angles…

360 degrees

contrapositive

Conditional statement

converse

Inverse

If a shape does not have 4 sides, then it is not a square.

If a shape is square, then it has 4 sides.

if a shape has 4 sides, then it is a square.

if a shape is not a square, then it does not have 4 sides.

contrapositive

If a shape does not have 4 sides, then it is not a square.

Conditional statement

If a shape is square, then it has 4 sides.

Parallel lines

Slew lines

Perpendicular lines

Transversal

coplanar lines that do not intersect

Lines that are not coplanar and do not intersect

Lines that are coplanar and intersect at a 90 degree angle

A line that intersects two or more coplanar lines at different…

Parallel lines

coplanar lines that do not intersect

Slew lines

Lines that are not coplanar and do not intersect