Mathematics

9th -

12thgrade

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Surface Area

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17 questions

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  • 1. Multiple Choice
    15 minutes
    1 pt
    Image

    Find the surface area of the figure.
    Round your answer to the nearest hundredth.
    Use the formula:  SA=4πr2SA=4\pi r^2  

    1,520.53 cm2cm^2

    760.27 cm2cm^2

    379.94 cm2cm^2

    759.88 cm2cm^2

  • 2. Multiple Choice
    15 minutes
    1 pt
    Image

    Find the surface area of the figure.
    Round your answer to the nearest hundredth.
    Use the formula:  SA=3πr2SA=3\pi r^2  

    1,847.26 mi2mi^2  

    615.44 mi2mi^2  

    923.43  mi2mi^2  

    263.76  mi2mi^2  

  • 3. Multiple Choice
    15 minutes
    1 pt

    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=4πr2SA=4\pi r^2  

    1,134.11 in2in^2

    567.06 in2in^2

    90.25 in2in^2

    283.39 in2in^2

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