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Question
What is the perimeter of a square whose diagonal is 5 times the square root of 2?
The diagonal of a square is s√2 ,where s is the length of a side.
The given diagonal is 5√2 , so 5√2 = s√2 ,and then 5 = s ,cancelling the √2 .
The square has 4 sides ,each side has length 5 ,so the total perimeter is 4 x 5 = 20
The answer is 20
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Socrates
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