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18 November, 22:46

The formula C = 2 π r is used to calculate the circumference of a circle when given the radius. What is the formula for calculating the radius when given the circumference?

A) C/2π = r

B) C/2r = π

C) 2 πC = r

D) 2π/C = r

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Answers (1)
  1. 18 November, 23:36
    0
    The correct answer is A because it C=2*3.14*R
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