A ladder is resting against a vertical wall and its bottom is 2.5 m away from the wall. If it slips 0.8 m down the wall, then its bottom will move away from the wall by 1.4 m. What is the length of the ladder?
A) 6.2 m B) 6.5 m C) 6.8 m D) 7.5 m
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Answer:
6.5
sorry but I can't give you explanation
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