Unit 1 - Lesson 8 - Grade 8: Illustrative Mathematics

What would it look like when you rotate the four triangles 90 degrees clockwise around B? 180 degrees? 270 degrees clockwise?

Rotate segment CD 180 degrees around its midpoint, G. What is the image of C?

What happens when you rotate a segment 180 degrees around a point?

Describe a rigid transformation that takes triangle ABC to triangle CDE.

Describe a rigid transformation that takes triangle ABC to triangle EFG.

Describe a rigid transformation that takes triangle ABC to triangle GHA.

Do segments AC, CE, EG, and GA all have the same length? Explain your reasoning.

Is Triangle B a rotation of Triangle A? Explain your reasoning.