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Earn +20 ptsQ: Is 9 a perfect number
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Is 9 a perfect square number?
Yes, nine is a perfect squarebecause 9 = 3*3
How is a sudoku puzzle a perfect square?
Because 9*9 = 81 which is a square number or a perfect square.
What is a whole number than can be named as a product of a number with itself called?
A whole number that can be made by multiplying an integer by itself is a perfect square, or square number. An example is 81, which is a perfect square made by 9 x 9.
Why is square root of 9 a rational number and square root of 3 is an irrational number?
Because 9 is a perfect square - which means that its square root is an integer. 3 is not a perfect square.
What does it mean for a number to be a perfect square?
A perfect square is a number whose square root is a whole number, such as 1, 4, 9, 16, 25, etc.
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