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9 January, 15:13

What is a reasonable estimate for the circumference of a circle with a radius of 12 inches? A. C≈36in. B. C≈72in. C. C≈144in. D. C≈432in.

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  1. 9 January, 15:48
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    B. C≈72in

    Step-by-step explanation:

    Circumference = pi * d

    Where d is the diameter

    d = 2*radius

    d = 2 * 12

    d = 24

    C = pi*24

    Let pi be approximated by 3.

    C ≈ 3.*24

    C ≈ 72
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