Unit 8, Lesson 9# The Converse

Open Up Resources 35 min(s)

This lesson guides students through a proof of the converse of the Pythagorean Theorem. Then students have an opportunity to decide if a triangle with three given side lengths is or is not a right triangle. Apply the converse of the Pythagorean Theorem to determine if a triangle is a right triangle. Apply the converse of the Pythagorean Theorem to determine if a triangle is a right triangle.