A 13 feet ladder is placed 5 feet away from a wall. The distance from the ground straight up to the top of the wall is 13 feet.
Answer is simple, you can find the answer through Pythagorean theorem.
a squared + b squared= c squared
if 13 is a and 5 Is b plug into the equation
194 (13 squared = 169 + 5 squared = 25) = c squared.
now take the square root
c^2 is approximately 13.9
hope I helped :)
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