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A ladder 13m long is placed on the ground in such a way that it touches the top of a vertical wall 12m high. 

Find the distance of the foot of the ladder from the bottom of a wall. 

 May 19, 2021
edited by Guest  May 19, 2021
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We can simply use the pythagorean theorem to get \(\sqrt{13^2-12^2} = 5.\)

 May 19, 2021

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