Perfect Squares & Square Roots Flashcard - 2nd Period

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What is a perfect square?

Back

A perfect square is a number that can be expressed as the square of an integer. For example, 1, 4, 9, 16, and 25 are perfect squares.

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What is the square root of a number?

Back

The square root of a number is a value that, when multiplied by itself, gives the original number. For example, the square root of 25 is 5 because 5 x 5 = 25.

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x = 6 or x = -6, since both 6 and -6 squared equal 36.

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12, because 12 x 12 = 144.

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1, because 1 x 1 = 1.

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x = 49, because 7 x 7 = 49.

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25, because 25 x 25 = 625.

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13, because 13 x 13 = 169.

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x = 16, because 4 x 4 = 16.

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11, because 11 x 11 = 121.