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30 November, 20:22

Marcus and three of his friends are guessing the radius of a circular pond. They read that the circumference is 157 ft, so they can use the equation 3.14*2r=157 to determine which of these guesses which form the replacement set {20,25,30,35} is correct?.

What is the radius of the pond?

A. 20ft

B. 25ft

C. 30ft

D. 35ft

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Answers (1)
  1. 30 November, 20:33
    0
    B. 25

    for these you could just plug each one in and compare the results
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