In this lesson, we learn about the Pythagorean theorem, one of the most famous theorems in math, and how to use it to find the length of a missing side of a right triangle. The theorem states that if we have a right triangle and we have two legs, A and B, then the sum of the squares of the legs is the same as the square of the hypotenuse. We are shown how to use this theorem to find the exact and approximate lengths of the missing sides of two right triangles. Finally, we learn how to simplify the square root of a number to make it easier to work with.
Find side of a right triangle using the Pythagorean Theorem.
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