Circles

SAT Math· difficulty 2/5

A circle has diameter 10. What is its circumference?

  • A

    20π20\pi

  • B

    5π5\pi

  • C

    25π25\pi

  • D

    10π10\pi

    check_circle

Explanation

Circumference =pid=pi(10)=10pi= \\pi d = \\pi(10) = 10\\pi.

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