SOLUTION: There is a ladder 12' and it is leaning on a wall and the bottom of the ladder is 4ft. What is the hypotenuse?

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Question 189251: There is a ladder 12' and it is leaning on a wall and the bottom of the ladder is 4ft. What is the hypotenuse?
Found 2 solutions by nerdybill, Mathtut:
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
The hypotenuse is the length of the ladder (12 feet).

Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
actually your looking for the distance from top of the ladder to the ground...which is a leg...lets call it a
:
a%5E2%2B4%5E2=12%5E2
:
a%5E2=144-16
:
a=sqrt%28128%29
:
a=11.31