Answer :

lindseyskate1oyiaa4
the diagonal is solved by a^2+b^2=c^2
c=8 in this problem, so c^2=64
Since the figure is a square, a must equal b.
64/2=32, each side is root of 32 units
the square root of 32 is approximately 5.66.
margotluria
Use the Pythagorean theorem. Since sides of squares are all equal 2a^2=8^2. 2a^2=64, so a^2=32. The sides are equal to the square root of 32

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