Question

How long is a string reaching from the top of a 13-ft pole to a point on the ground that is 7ft from the base of the pole ?

Answer 1

20 feet should be the correct answer. not sure if there's any choices

Answer 2

The string would represent the hypotenuse of a right triangle.
7^2 + 13^2 = c^2
49 + 169 = c^2
218 = c^2
sqrt 218 = c
14.8 = c