Question

A 20 foot ladder is placed against a building to reach a window that is 16 feet above the ground. How many feet away from the building is the bottom of the ladder?
A. 3
B. 4
C. 12
D. 15

Answer 1

Use the Pythagorean theorem. \(a^2 + b^2 = c^2\)

Answer 2

i got 4 which is b? correct???

Answer 3

or no?

Answer 4

No. You have to square the sides before you add them.
\[a^2 + 16^2 = 20^2\]

Answer 5

okay got it thanks