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MathematicsMathematics
9 January, 03:40

What is the circumference (in inches) of a circle with radius of 5 inches? Use 3.14 for n.

A. 31.4 in

B. 15.7 in

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Answers (2)
  1. 9 January, 03:48
    0
    A. 31.4 in.

    Step-by-step explanation:

    Formula for the circumference:

    C = dπ (d = 2r)

    Therefore:

    C = 10π

    C = 10 · 3.14

    C = 31.4 in.
  2. 9 January, 04:05
    0
    A: 31.4 in

    Step-by-step explanation:

    Use the equation C = 2πr to solve your problem.

    Since you are given the radius r you only need to plug in 5 in. to r and calculate it on the calc. When you multiply everything together you should get 31.4 in.
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