Surface Area of Sphere

What is the formula for surface area of a sphere?

• SA=B+LA

• SA=(4/3)πr³

• SA=4πr²

• SA=Bh

A diameter is equal to how many radiuses?

• 1

• 2

• 4

• 7

What is the surface area of the sphere with a radius 5cm. Leave in terms of π.

SA=4πr²

• 40π cm²

• 100π cm²

• 400π cm²

• 625π cm²

What is the surface area of the sphere with a radius 22in. Leave in terms of π.

SA=4πr²

• 88π in²

• 176π in²

• 1,374π in²

• 1,936π in²

What is the surface area of the sphere with a radius 2 units. Leave in terms of π.

SA=4πr²

• 16π units²

• 8π units²

• 24 units²

• 12 units²

What is the surface area of the sphere with a radius 11 in. Leave in terms of π.

SA=4πr²

• 44π in²

• 88π in²

• 576π in²

• 484π in²

 A sphere has surface area of  $64\pi\ cm^2$  .  What is the radius?  Write an equation and solve, show your work on a sheet of paper!

• 4 cm 

• 2 cm 

• 6 cm 

• 8 cm

A sphere has surface area of   $484\pi\ cm^2$ . What is the radius?  Write an equation and solve, show your work on a sheet of paper!

If the surface area of a sphere is 144π cm², what is the diameter of the sphere?

• 24 cm

• 12 cm

• 18 cm

• 6 cm

Find the radius of a sphere whose surface area is 396 ft².

• 5.26

• 5

• 5.62

• 6