Estimating Square Roots Challenge

If a square has an area of 64 square units, what is the length of one side?

(a)  

• 3

• 6

• 7

• 4

A garden is shaped like a square with an area of 121 square feet. What is the length of each side?

• 9 feet

• 11 feet

• 12 feet

• 10 feet

What is the estimated square root of 50?

• 9.0

• 7.07

• 6.5

• 8.2

• 4.0

• 4.24

• 5.0

• 3.5

• 20 feet

• 14.14 feet

• 12.5 feet

• 10 feet

Estimate the square root of 45. Is it closer to 6 or 7?

• 5

• 8

• 9

• 6

A square plot of land has an area of 225 square meters. What is the approximate length of one side?

• 20 meters

• 10 meters

• 12 meters

• 15 meters

If you need to find the square root of 80, which two whole numbers does it fall between?

• 7 and 8

• 9 and 10

• 6 and 7

• 8 and 9