Surface Area

Find the surface area of the figure.
Round your answer to the nearest hundredth.
Use the formula:  $SA=4\pi r^2$  

• 1,520.53 $cm^2$

• 760.27 $cm^2$

• 379.94 $cm^2$

• 759.88 $cm^2$

Find the surface area of the figure.
Round your answer to the nearest hundredth.
Use the formula:  $SA=3\pi r^2$  

• 1,847.26 $mi^2$  

• 615.44 $mi^2$  

• 923.43  $mi^2$  

• 263.76  $mi^2$  

The diameter of a standard basketball is 9.5 inches. If the basketballs are covered in rubber, what is the minimum amount of rubber needed to manufacter one ball? 

Find the surface area of the figure. Round to the nearest hundredth.
Use the formula:  $SA=4\pi r^2$  

• 1,134.11 $in^2$

• 567.06 $in^2$

• 90.25 $in^2$

• 283.39 $in^2$

Find the surface area of the figure.
Round your answer to the nearest hundredth.
Use the formula:  $SA=3\pi r^2$  

• 4156.33 $mm^2$

• 16.616.88 $mm^2$

• 2,078.17 $mm^2$

• 1,384.74 $mm^2$

Find the surface area of the figure. Where the diameter is 8.6 ft.
Round your answer to the nearest hundredth.
Use the formula:  $SA=4\pi r^2$  

• 232.35 $ft^2$

• 116.18 $ft^2$

• 928.94 $ft^2$

• 58.06 $ft^2$

Find the surface area of the figure.

Round your answer to the nearest hundredth.

• 576.40 $in^2$

• 1,031.8 $in^2$

• 2,504.70 $in^2$

• 517.3 $in^2$

Find the surface area of the figure.

Round your answer to the nearest hundredth.

• 89.4 $yd^2$

• 163.20 $yd^2$

• 44.7 $yd^2$

• 64.8 $yd^2$

Find the surface area of the figure.

Round your answer to the nearest hundredth.

• 542.87 $mm^2$

• 271. 44 $mm^2$

• 221.06 $mm^2$

• 442.12 $mm^2$

Find the surface area of the figure.

Round your answer to the nearest hundredth.

• 857.18 $km^2$

• 428.59 $km^2$

• 1,537.34 $km^2$

• 771.64 $km^2$

Find the surface area of the figure.

Round your answer to the nearest hundredth.

• 73.6 $m^2$

• 362.2 $m^2$

• 36.8 $m^2$

• 181.1 $m^2$