because 8x8 equals 64...just like the square root of 36 is 6 because 6x6 is 32
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The square root of 64 is 8(8 x 8 = 64)
The square root of 64 is ± 8
the square root of 64 is 8
The square root of 64 equals 8. 8x8=64
The square root of 64 is +/- 8