Unit 8, Lesson 7# A Proof of the Pythagorean Theorem

Open Up Resources 50 min(s)

Apply the Pythagorean Theorem to determine unknown side lengths in right triangles. Let's prove the Pythagorean Theorem. Learning targets: students can explain why the Pythagorean Theorem is true. If you choose to do the optional activity, you will need the 5 cutout shapes from the Making Squares blackline master used in the first lesson of this unit-1 set of 5 for every 2 students.