Answer:
C. 17 feet
Step-by-step explanation:
This problem allows us to use the Pythagorean theorem to solve. We are give both legs or a right triangle. One leg is the height of the window =15ft and the other is the distance away from the building = 8ft. We are trying to find the length of the ladder, which will be the hypotenuse.
a^2 +b^2 =c^2 where a and b are the lengths of the legs and c is the hypotenuse
8^2+15^2 = c^2
64+225 = c^2
289 = c^2
Take the square root of each side
sqrt(289) = sqrt(c^2)
17 = c
