Square Roots and Cube Roots

Front

What is a square root?

Back

A square root of a number is a value that, when multiplied by itself, gives the original number. For example, the square root of 49 is 7.

Front

What is a cube root?

Back

A cube root of a number is a value that, when multiplied by itself three times, gives the original number. For example, the cube root of 27 is 3.

Front

What is the area of a square with a side of 5?

Back

25 (Area = side × side = 5 × 5 = 25).

Front

What is the area of a square with a side of 10?

Back

100 (Area = side × side = 10 × 10 = 100).

Front

How do you find the area of a square?

Back

Multiply the length of one side by itself (Area = side × side).

Front

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.

Front

Is 64 a perfect square?

Back

Yes, because 8 × 8 = 64.

Front

Is 50 a perfect square?

Back

No, because there is no integer that, when squared, equals 50.

Front

How do you find the side length of a square if you know the area?

Back

Take the square root of the area.

Front

What is the cube of 3?

Back

27 (3 × 3 × 3 = 27).