the length of one leg of a right triangle is 24 ft, and the length of the hypotenuse is 40 ft. What is the length of the other leg?
a^2+b^2=c^2 so 40^2+24^2=c^2. Therefore you should get 2176=c^2. Simply take the square root and you get about 46.65ft.
40^2 - 24^2 = x 1600 - 576 = 1024 √1024 = 32 ft