Surface Area of Sphere

Find the surface area of the sphere, given diameter is 10.

• 314.16 in²

• 314 in²

• 166.67 in²

• 521.24 in²

Find the surface area when r=21.5 inches.
Choose the correct units.

• 5805.9 in²

• 1849 in²

• 1849 in³

• 5805.9 in³

What is the surface area?

• 6658.56 mm²

• 452.16 mm²

• 904.32 mm²

• 108.8 mm²

For a sphere with a radius of 8, what is the Surface Area?

• 803.84

• 10096.2304

• 2143.573

• 100.48

What is the formula for the surface area of a sphere?

• SA = πr²h

• SA = 4πr²

• SA = (4/3)πr²

• SA = (4/3)πr³

What is this formula?

• suface area of a cone

• surface area of a sphere

• volume of a cone

• volume of a sphere

Find the surface area when r=25cm.
remember to look at the units!!!!

• 2500 cm²

• 2500 cm³

• 7850 cm²

• 7850 cm³

What is the surface area of a baseball with a 3 inch diameter.  Use 3.14 for pi.  
***remember to find r first!!!!

• 28.3 in²

• 113.04 in²

• 18.84 in ²

Which formula calculates the surface area of a sphere?