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Area and Volume

SAT Math· difficulty 3/5

A cone has volume 24π24\pi and height 88. What is its radius?

  • A

    44

  • B

    22

  • C

    33

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  • D

    66

Explanation

24π=13πr2(8)24\pi=\frac{1}{3}\pi r^2(8), so r2=9r^2=9 and r=3r=3.

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