Yes. The square root of 16 is 4
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16 is a perfect square (of 4) and the square root of 256.
perfect square of 16= 4 because 4 times 4 is 16.
A perfect square is a whole number multiplied by itself. For example, the perfect square of 4 is 16.
you can multiply two whole numbers together to get that. if you use graph paper, you could make a perfect square. the area of that square is called a perfect square because you can make a perfect square using that many units as the area. for example 4x4=16, so 16 would be the perfect square.
49x2 - 56x + 16 = (7x - 4)2 so yes, it can be a perfect square.