Square and Square Roots

Front

What is a perfect square?

Back

A perfect square is a number that can be expressed as the product of an integer with itself. For example, 49 is a perfect square because it is 7 x 7.

Front

What is the square root of 49?

Back

7

Front

What is the square root of 78?

Back

Approximately 8.83, but it can be expressed as 8√9.

Front

What is the square of 18?

Back

324 (because 18 x 18 = 324).

Front

What is the area of a square with a side length of 6 cm?

Back

36 cm² (Area = side x side = 6 cm x 6 cm).

Front

What is the formula to find the area of a square?

Back

Area = side².

Front

What is the square root of 81?

Back

9.

Front

What is √(81/121)?

Back

√(9/11).

Front

If the area of a square is 36 cm², what is the length of one side?

Back

6 cm.

Front

What does it mean to simplify a square root?

Back

To express the square root in its simplest form, removing any perfect square factors.