The answer is 16 because 4^2 = 16 but even though its negative the value is 16
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 20 is about 4.472. Thus, the square root of 20 is not an integer, and therefore 20 is not a square number.
Can you put it in any form instead of a point so I can correctly plot it in
The remaining area is 20% of the previous area.
Hope this Helps!
