Question 883591
2A)  45^2 + B^2 = 90^2
B^2 = 90^2 - 45^2 = 6075
B = 77.94 feet
B is height of window above the ground
2B)  now for our own data
30^2 + 10^2 = C^2
C^2 = 1000
C = 31.62
the length of the ladder is 31.62 feet