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3 September, 04:23

What is the exact circumference of a circle that has a radius of 10 cm? Select one: a. 10πcm b. 20πcm c. 100πcm d. 200πcm

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  1. 3 September, 04:25
    0
    Circumference Formula: C = 2πr

    C = 2π (10)

    C = 20π

    The correct answer is b. 20πcm

    Note that if you want to solve for the exact circumference, you don't want to solve for pi since its a non-terminating decimal. If you want to round the nearest circumference multiply pi with 3.14.

    Best of Luck!
  2. 3 September, 04:40
    0
    b. 20πcm

    Step-by-step explanation:

    The circumference is given by

    C = 2*pi*r

    = 2 * pi * 10

    = 20pi
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