what number times itself = 16, that is what you are trying to find.
4 x 4= 16 so the square root of 16 =4
square root of 25 is 5 because 5 x 5 is well 25.
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To find the square root of a number you multiply that number by it self twice.(example) the square root of 9 ? the square root of nine is 81 as 9X9=81. square root of 4 ? th square root of is 16 as 4X4=16.
There are two because the square root of 16 for example is 4 or -4
the square root of 16 is exactly 4 so answer is 4.00 but again it is exact and not simply nearest
16(square root)15
The square root of 16 is 4