SOLUTION: The foot of a ladder is placed 9 feet away from a wall. If the top of the ladder rests 13 feet up on the wall, find the length of the ladder.

Algebra ->  Pythagorean-theorem -> SOLUTION: The foot of a ladder is placed 9 feet away from a wall. If the top of the ladder rests 13 feet up on the wall, find the length of the ladder.       Log On


   

Question 1155925: The foot of a ladder is placed 9 feet away from a wall. If the top of the ladder rests 13 feet up on the wall, find the length of the ladder.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
This is a right triangle with legs 9 and 13, and the ladder is the hypotenuse.
the square of those number is 81 and 169
their sum is 250
sqrt(250)=15.81 feet