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21 September, 21:00

A circle has an area of 80 square centimeters. Which answer is closest to the

measure of its radius?

A. 2.85 centimeters

B. 5 centimeters

C. 10.1 centimeters

D. 24.5 centimeters

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Answers (1)
  1. 21 September, 22:47
    0
    The answer is B because of substitution.

    80=pi*r^2

    After moving the equation the answer is 5 cm
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