Question

A ladder leans against a 15-foot building to form a right triangle. The ladder is placed so that it is 8 feet from the building. What is the length of the ladder?

Answer 1

Answer:

17 feet

Step-by-step explanation:

$15^{2}+8x^{2} = x^{2} \\225 + 64 = x^{2} \\289 = x^{2} \\17 = x$