Surface Area of Spheres

Which formula calculates the surface area of a sphere?

• $\frac{4}{3}\pi r^3$

• $4\pi r^2$

• $\frac{1}{3}\pi r^3$

• $\pi r^2$

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

What is the surface area? Use 3.14 for  $\pi$  

• 6658.56 mm²

• 452.16 mm²

• 904.32 mm²

• 108.8 mm²

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

Find the surface area of the sphere, given diameter is 10. Use 3.14 for  $\pi$  

• 314.16 in²

• 314 in²

• 166.67 in²

• 521.24 in²

For a sphere with a radius of 8, what is the Surface Area? Use 3.14 for  $\pi$  

• 803.84

• 10096.2304

• 2143.573

• 100.48

Find the surface area of the sphere to the nearest tenth. Use 3.14 for  $\pi$  . DO NOT INCLUDE UNITS!

The surface area of a sphere is 804.25 m², find the radius of the sphere to the nearest whole number