Square and Square Roots

Square roots are opposites of _________.

• Cube roots

• Squaring

• Multiplication

• Absolute value

Evaluate  $\sqrt{ }$  72 to the nearest whole number.

• 7.2

• 7

• 8

• 9

To find the square root of a number, you must divide it by 2

• True

• False

Tick the options which is equal to 4

• 2 square

•  $\sqrt{ }$  16

• 100/25

• 4 $\times$  1

Evaluate $\sqrt{ }$  36

The area of a square is 117sq meters .which best represents the lenght of a side.

• 10.8 m

• 11 m

• 10 m

• 11.2 m

An imperfect square is a number whose square root is_________

• Even

• irrational

• rational

• odd

If I know the area of a square, how will I find the side length?

• I square the area

• I divide the area by 2

• I take the square root of the area.

Estimate  $\sqrt{ }$  50 to the nearest whole number.

• 5

• 10

• 25

• 7

what is the square root of - 64

• 8

• -8

• 8i

• -8i