Squares and Square Roots

What are the two square roots of 100 ?

• 10 and -10

• 2 and -2

• 50 and 2

• 100 and 1

What are the two square roots of 49 ?

• 8 and -8

• 5 and -5

• 7 and -7

• 7 and 7

What are the two square roots of 121 ?

• 12 and -12

• 11 and -11

• 10 and -10

• 11 and 11

• 27

• 20

• 25

• 28

• -1

• 1

• -9

• 2

• 4

• 4 and -4

• 8 and -8

• 2 and -2

• 3 and -3

• 2 and -2

• 7

• 8

• 7.8

• 9

• 3

• 8

• 5

• 4

A square has an area of 144 square inches.

What is the length of one side of the square?

• 11 inches

• 12 inches

• 10 inches

• 72 inches