# Study sets matching "geometry set year"

collinear points

concurrent lines

line segment

ray AB

points that all lie on a single line

three or more lines that intersect at the same point

part of a line with a fixed length and end points

part of a line with one end point A and passing through point B

collinear points

points that all lie on a single line

concurrent lines

three or more lines that intersect at the same point

Vertically opposite angles are...

Angles on a straight line add to...

Isosceles Triangle

Obtuse Angle

equal

180 degrees

Two sides the same length, and two angles the same size

Measures between 90 and 180 degrees

Vertically opposite angles are...

equal

Angles on a straight line add to...

180 degrees

Square

Rectangle

Triangle

Right Angle

A _____ is a plane figure with 4 equal sides and 4 right angle…

A Quadrilateral with 4 sides and 4 right angles.... Opposite sid…

A polygon with 3 sides and 3 angles.

An angle that is 90 degrees (It makes a square in the corner).

Square

A _____ is a plane figure with 4 equal sides and 4 right angle…

Rectangle

A Quadrilateral with 4 sides and 4 right angles.... Opposite sid…

Deductive Reasoning

Inductive Reasoning

Valid

Law Of Detachment

Uses facts, rules, definitions, or proper ties to reach logica…

Something you think will happen based on previous events.

It's reasonable to conclude based on fact.

If p>q is a true conditional statement and p is true, then q i…

Deductive Reasoning

Uses facts, rules, definitions, or proper ties to reach logica…

Inductive Reasoning

Something you think will happen based on previous events.

distance between 2 points

slope

midpoint

The slope of a line parallel to the x-a…

is the absolute value of the difference of the coordinates of…

the point that divided the segment into two congruent segments

0

distance between 2 points

is the absolute value of the difference of the coordinates of…

slope

Acute Angle

Acute Triangle

Adjacent Angles

Altitude

An angle that measures between 0 and 90 degrees

A triangle with 3 acute angles

Angles that have a common vertex and side; angles that are nex…

Height; length of segment that is perpendicular to the base of…

Acute Angle

An angle that measures between 0 and 90 degrees

Acute Triangle

A triangle with 3 acute angles

Angle

Angles at a point

Angles on a straight line

Right angle

An amount of rotation(turns)

Add to360°

Add to 180°

An angle that is exactly 90°

Angle

An amount of rotation(turns)

Angles at a point

Add to360°

Intersection of Two Lines

Angle

Congruent

Perpendicular Lines

The point where two lines intersect . e.g. Point C in diagram

Formed by two rays with the same endpoint.

Having equal measure.

Lines that intersect and form right angles.

Intersection of Two Lines

The point where two lines intersect . e.g. Point C in diagram

Angle

Formed by two rays with the same endpoint.

Line

Collinear points

Coplanar

Segment

A straight, unbroken set of points that goes on forever. It ha…

A set of points that lie on the same line

Points, lines, or segments that lie on the same plane

A part of a line with two endpoints.

Line

A straight, unbroken set of points that goes on forever. It ha…

Collinear points

A set of points that lie on the same line

acute angle

alternate interior angles

angle bisector

apothem

an angle measuring between 0 and 90 degrees

nonadjacent interior angles that lie on opposite sides of the…

a ray that divides an angle into two congruent angles

in a regular polygon, the distance from the center to a side

acute angle

an angle measuring between 0 and 90 degrees

alternate interior angles

nonadjacent interior angles that lie on opposite sides of the…

line

point

obtuse

ray

geometric shape that goes on in both directions

.

an angle that measures between 91' and 179'

geometric shape that has one endpoint, the other end goes on f…

line

geometric shape that goes on in both directions

point

.

Median

Orthocenter

Circumcenter

Perpendicular Bisector

(In a Triangle) A segment whose endpoints are a vertex of a tr…

(of a triangle) is the point where the altitudes of the triang…

The point of concurrency of the perpendicular bisectors.

A line/segment/ray that goes through the midpoint at a 90 degr…

Median

(In a Triangle) A segment whose endpoints are a vertex of a tr…

Orthocenter

(of a triangle) is the point where the altitudes of the triang…

isosceles triangle

equilateral triangle

Area of a triangle

Area of a rectangle

2 equal sides and 2 equal angles

3 equal sides and 3 equal angles

base times height divided by 2

length times width

isosceles triangle

2 equal sides and 2 equal angles

equilateral triangle

3 equal sides and 3 equal angles

Vertically opposite angles are equal

Angles on a straight line add to 180°

Equilateral Triangle... Three sides the sa…

Isosceles Triangle... Two sides the same l…

Vertically opposite angles are equal

Angles on a straight line add to 180°

corresponding angles conjecture 2-6

alternate interior angles conjecture 2-6

alternate exterior angles conjecture 2-6

parallel lines 2-6

if two angles are the same place in two lines in relation to a…

if two parallel lines are cut by a transversal then alternate…

if two lines are cut by a transversal then alternate exterior…

if two lines are parallel and cut by a transversal then... -corre…

corresponding angles conjecture 2-6

if two angles are the same place in two lines in relation to a…

alternate interior angles conjecture 2-6

if two parallel lines are cut by a transversal then alternate…

acute angle

acute-angled triangle

adjacent angles

alternate angles

an angle that is less than 90 degrees

a triangle with all 3 angles acute

angles that share common side and a common vertex and don't ov…

pairs of angles on the opposite side of the transversal and th…

acute angle

an angle that is less than 90 degrees

acute-angled triangle

a triangle with all 3 angles acute