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Area and Volume

SAT Math· difficulty 4/5

A sphere has volume 43π\frac{4}{3}\pi. What is its surface area?

  • A

    16π16\pi

  • B

    4π4\pi

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  • C

    2π2\pi

  • D

    π\pi

Explanation

43πr3=43π\frac{4}{3}\pi r^3=\frac{4}{3}\pi, so r=1r=1. SA=4π(1)=4πSA=4\pi(1)=4\pi.

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