Mathematics

15 April, 10:05

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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