A location with no size or shape
Point
Angles on the same side of the traversal and in the same position
Corresponding Angles
If two corresponding angles are congruent, then the triangles are similar
Angle Angle Similarity
If two angles are vertical, then they are congruent
Vertical Angles Theorem
What type of triangle has 3 congruent angles
Equiangular
Made up of points with no thickness or width
Interior angles, non-adjacent, and on opposite sides of the transversal
Alternate Interior Angles
If all corresponding sides are proportional, then the triangles are similar
Side-Side-Side Similarity
If two angles form a linear pair, then they are supplementary
Linear Pair Theorem
What type of triangle has 3 congruent sides
Equilateral
A line that extends indefinitely in one direction
Ray
What kind of angles are 5 and 8
Vertical Angles
How are these triangles similar
SSS Similarity
If two angles form a right angle, then they are complementary
Complement Theorem
Classify this triangle by the sides
Equilateral
A segment, line, or plane that intersects a segment at its midpoint.
Segment Bisector
What kind of angles are 3 and 6
Alternate Interior Angles
Are these triangles similar
Yes triangle ABC is similar to triangle DEF
If two angles are complementary to the same angle, they are congruent
Congruent Complements Thoerem
Classify this triangle
A
A line, segment, or ray perpendicular to a segment at its midpoint
Perpendicular Bisector
What kind of angles are 6 and 4
Same-side Interior Angles
Find X
X = 12
If two angles are supplementary to the same angle, they are congruent
Congruent Supplements Theorem
Classify this triangle
Acute Isosceles