Geometry | Unit 2 | Lesson 10: Practicing Proofs | Practice Problems

Painters and carpenters use scaffolding to climb buildings from the outside. What shapes do you see? Why does one figure have more right angles?

Select all true statements based on the diagram.

Elena is thinking through a proof using a reflection to show that the base angles of an isosceles triangle are congruent. Complete the missing information for her proof.