surface area of spheres

A company makes glass lawn ornaments with a radius of 9 inches. The glass to make the balls costs the company $0.03 per square inch. To the nearest cent, how much does the company pay for the glass to create one ornament? Use 3.14 for .Recall the formula .

$30.52

A company makes globes with a radius of 11 inches. The material to make the globes costs the company $0.04 per square inch. To the nearest cent, how much does the company pay for the material to create one globe? Use 3.14 for .Recall the formula .

$60.79

The radius of an orange is 3 inches. What is the approximate surface area of the orange? Round to the nearest hundredth and use 3.14 for .Recall the formula .

113.04 square inches

A sphere has a diameter of 12 ft. What is the surface area of the sphere? Express the answer in terms of ft.Recall the formula .

144

A company makes plastic beach balls with a radius of 2 inches. How many square inches of plastic does the company need to make 10 beach balls? Use 3.14 for and round to the nearest tenth.Recall the formula .

502.4 in. squared

A company makes toy plastic soccer balls each with a radius of 3 inches. How many square inches of plastic does the company need to make 5 toy soccer balls? Use 3.14 for and round to the nearest tenth.Recall the formula .

565.2 in. squared

The diameter of the sphere is 16 inches.What is the approximate surface area of the sphere? Round to the nearest hundredth. Use 3.14 for . Recall the formula .

803.84 square inches

A sphere has a diameter of 8 cm. Which statements about the sphere are true? Select two choices.Recall the formula .

A, D

The radius of the sphere is 9 inches. Which equation can be used to find the surface area of the sphere?

B

The radius of the sphere is 6 millimeters. Which equation can be used to find the surface area of the sphere?

D