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A man walked diagonally across a square plot. Approximately what was the percent saved by not walking along the edges?

Correct Answer: 30%

Explanation:

let the side of the square be x meters
length of two sides = 2x meters
diagonal =  2 x = 1.414x m


 


saving on 2x meters = .59x m


 


saving % =  0 . 59 x 2 x * 100 %


 


= 30% (approx)


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