Question

How can I find the height of this prism? I know that because it is an oblique prism, the height is not 17.

Answer 1

using the triangle made by the dotted lines
youhave a base dimension of 8 anfd the hypotenuse ( slanted line) would be 17
using the Pythagorean theorem solve for height"

height = sqrt(17^2 - 8^2)

height = sqrt(289 - 64)
height = sqrt(225)

height = 15