Unit 9 "Test"

What is the approximate circumference of a plate with a diameter of 11 inches? Use 3.14 for π

• 39.21

• 34.54

• 28.15

• 17.27

Jasmine has a circular swimming pool with a radius of 4.2

meters. What is the circumference of the pool? Use 3.14

for π . Round to the nearest hundredth if necessary.

A circular garden has a circumference of 39.25 feet. Find the approximate diameter of the garden. Use 3.14 for π

• 12.5 ft

• 19.6 ft

• 25 ft

• 15.3 ft

A carpenter has two different-sized circular saws. The smaller saw has the radius shown. The larger saw has a diameter that is 1.5 inches greater than the diameter of the smaller one. How much greater is the circumference of the larger saw than the smaller saw?

• 4.17

• 4.71

• 12.56

• 7.85

Find the area of the circle shown. Use 3.14 for π . Round to the nearest hundredth if necessary.

A nickel has a diameter of 21.21 millimeters. What is the area of the face of a nickel? Use 3.14 for π .

• 176.57 mm squared

• 706.28 mm squared

• 353.14 mm squared

• 789 mm squared

The Caldwells had a new concrete patio installed in the shape of a semicircle as shown. Mr. Caldwell wants to cover the patio with concrete sealer. What is the area he will need to cover with concrete sealer? Use 3.14 for π.

• 1,123.43 ft

• 561.72 ft

• 83.00 ft

• 280.86 ft

What is the area of the figure?

What is the area of the shaded region? Use 3.14 for π . Round to the nearest hundredth if necessary.

• 82.87

• 163.91

• 213.58

• 308.91

What is the area of the basement floor? Round to the nearest hundredth if necessary.