Grade 8 | Unit 2: Dilations, Similarity, and Introducing Slope | End-of-Unit Assessment (A)

Dilations increase the measure of angles.

Dilations of an angle are congruent to the original angle.

Dilations take perpendicular lines to perpendicular lines.

Dilations of a triangle are similar to the original triangle.

Dilations always increase the length of line segments.

Triangles 1 and 2 each have a $$35^\circ$$ angle.

Triangles 3 and 4 are both isosceles. They each have a $$40^\circ$$ angle.

Triangle 5 has a $$30^\circ$$ angle and a $$90^\circ$$ angle. Triangle 6 has a $$30^\circ$$ angle and a $$70^\circ$$ angle.

Triangle 7 has a $$50^\circ$$ angle and a $$25^\circ$$ angle. Triangle 8 has a $$50^\circ$$ angle and a $$105^\circ$$ angle.

A

B

C

D

E

B

C

D

E

F