Pythagorean Theorem, theorem
TEKS 8(1)(B), 8(1)(C), 8(1)(D), 8(1)(F), 8(7)(C)
You used the Pythagorean Theorem to find the hypotenuse of a right triangle when you knew the lengths of the legs. You can also use the Pythagorean Theorem to find the length of a leg when you know the hypotenuse and the length of the other leg.
TEKS 8(1)(C), 8(7)(C)
Example Calculating Unknown Leg Lengths Using the Pythagorean Theorem
What is the length of the unknown leg in each triangle?
For each triangle, substitute the known values into the Pythagorean Theorem. Then solve the equation to find the length of the unknown leg.