Question 799184
(height of tower)^2 + (distance from base of building)^2 = (length of guy wire)^2


(50)^2 + (25)^2 = x^2

2500 + 625 = x^2

3125 = x^2

sqrt{3125} = sqrt{x^2}

55.90 = x

The guy wire should be about 55.9 feet.