The sqrt. will be the length of one side.
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To determine if 224 is a perfect square, we need to find its square root. The square root of 224 is approximately 14.96. Since the square root is not a whole number, 224 is not a perfect square. Perfect squares are numbers that are the result of an integer multiplied by itself, such as 9 (3x3) or 16 (4x4).
38 is not a perfect square. Its square root is a fraction and the square root of a perfect square is always an integer.
A principal square root is any square root that's answer is positive, and a perfect square root is a square root that's answer is an integer.
16 is a perfect square (of 4) and the square root of 256.
Find the perfect squares that your number lies between. Your square root will lie between their square roots. Whichever it is closer to will indicate the size of the decimal.