a 25 m long ladder is placed against a vertical wall such that the foot of the ladder is 7 m from the feet of the wall.If the top of the ladder slides down by 4m, by how much distance will the foot of the ladder slide?

The foot ladder will be 23
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answer is 15.
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24 is the correct answer.
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answer is 5
 
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sorry 15
 
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Hey the answer is 15
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No guesses
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