Question 818603: The diagonal of a square is 3 ft. long, what is its perimeter?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! The diagonal of a square is 3 ft. long, what is its perimeter?
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Let each side of the square be "x"::
Equation:
2x^2 = 3^2
x^2 = (1/2)3^2
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x = 3/sqrt(2)
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Perimeter = 4x = 4(3/sqrt(2)) = 12sqrt(2)/2 = 6sqrt(2)
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Cheers,
Stan H.
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