For 8th graders, Triangles include various different scenarios where the Pythagorean theorem can be used to calculate the missing side length, one such case is missing side lengths in an isosceles triangle. Below “find missing side lengths in an isosceles triangles” worksheet includes questions where students can apply the above concept and solve for the missing side of an isosceles triangle.

Grade 8

Triangle Theorems

8.G.A.5