Vocabulary
Angle Relationships
Similar Triangles
Theorems
Classifying Triangles
100

A location with no size or shape 

 Point 

100

Angles on the same side of the traversal and in the same position

Corresponding Angles 

100

If two corresponding angles are congruent, then the triangles are similar 

Angle Angle Similarity 

100

If two angles are vertical, then they are congruent

Vertical Angles Theorem 

100

What type of triangle has 3 congruent angles  

Equiangular 

200

Made up of points with no thickness or width

Line
200

Interior angles, non-adjacent, and on opposite sides of the transversal

Alternate Interior Angles 

200

If all corresponding sides are proportional, then the triangles are similar 

Side-Side-Side Similarity 

200

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

Linear Pair Theorem 

200

What type of triangle has 3 congruent sides 

Equilateral 

300

A line that extends indefinitely in one direction

Ray

300

What kind of angles are 5 and 8 

Vertical Angles 

300

How are these triangles similar

SSS Similarity 

300

If two angles form a right angle, then they are complementary 

Complement Theorem 

300

Classify this triangle by the sides 

Equilateral 

400

A segment, line, or plane that intersects a segment at its midpoint. 

Segment Bisector

400

What kind of angles are 3 and 6 

Alternate Interior Angles 

400

Are these triangles similar 

Yes triangle ABC is similar to triangle DEF

400

If two angles are complementary to the same angle, they are congruent 

Congruent Complements Thoerem

400

Classify this triangle 

A

500

A line, segment, or ray perpendicular to a segment at its midpoint

Perpendicular Bisector 

500

What kind of angles are 6 and 4  

Same-side Interior Angles 

500

Find X

X = 12

500

If two angles are supplementary to the same angle, they are congruent

Congruent Supplements Theorem 

500

Classify this triangle 

Acute Isosceles