Square numbers are integers multiplied by themselves once, resulting in perfect squares that can be arranged in a square. The square root of a number is the number that, when multiplied by itself, equals the original number, with square roots representing the opposite of squaring and being the side length of a square for square numbers.

1. Square numbers and square roots

2. Definition: Square numbers Square numbers, also called perfect squares, are the result of multiplying a number (integer) by itself once.

3. Perfect squares are numbers that can be arranged in a square

4. Notation:

5. Definition: Square root The square root of a number is just the number which when multiplied by itself gives the first number. So 2 is the square root of 4 because 2 * 2 = 4. Finding the square root of a number is the opposite (inverse) of squaring a number

6. The square root of a square number is represented by the side length of a square.

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