Question

(had to submit this again lol) It's a square pyramid, and its height is unknown, and the slant height is 25 feet, and the length is 40 feet. Remember that the height is right in the middle of the square pyramid, creating a right triangle.
Apply the Pythagorean Theorem to determine the height of the square pyramid, ℎ. Round the answer to the nearest tenth.
31.2 ft.
15.0 ft.
32.0 ft.
47.2 ft.

Answer 1

Right triangle with legs h and half the base (40/2 = 20) and hypotenuse = slant height 25.

h^2 + 20^2 = 25^2
h^2 = 625 − 400 = 225
h = √225 = 15

So the height is 15.0 ft.