SOLUTION: I need help solving this problem. I know its A^2 + B^2=C^2 but I do not know where each number goes. here is the problem. I am solving for 2B. Using the correct formula, calculat

Algebra ->  Pythagorean-theorem -> SOLUTION: I need help solving this problem. I know its A^2 + B^2=C^2 but I do not know where each number goes. here is the problem. I am solving for 2B. Using the correct formula, calculat      Log On


   

Question 883591: I need help solving this problem. I know its A^2 + B^2=C^2 but I do not know where each number goes.
here is the problem. I am solving for 2B.
Using the correct formula, calculate the following: A man has a 90-foot ladder and leans the end of it against an exterior window of a house. The base of the ladder is 45 feet from the house. Calculate to the nearest foot how high it is from window to the ground.
**I already solved for this part.
2B)
b. Create your own data for the height of the window from the ground and distance of the base of ladder to the house. Calculate the length of the ladder.
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
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