Perfect Squares and Square Roots Review

Front

What is a perfect square?

Back

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

Front

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 36 is 6 because 6 x 6 = 36.

Front

Calculate the perimeter of a square with an area of 100 cm².

Back

The perimeter is 40 cm.

Front

Which of the following is NOT a perfect square: 49, 81, 111, 144?

Back

111 is NOT a perfect square.

Front

Evaluate √36.

Back

6

Front

What is 11²?

Back

121

Front

Which of the following is NOT a perfect square: 1, 4, 100, 8?

Back

8 is NOT a perfect square.

Front

What is the formula for the area of a square?

Back

Area = side × side (or side²).

Front

If the side length of a square is 5 cm, what is its area?

Back

The area is 25 cm².

Front

If the area of a square is 64 cm², what is the length of one side?

Back

The length of one side is 8 cm.