triforcegreen triforcegreen

11-06-2020
Mathematics

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The formula for the circumference of a circle is C = 2\pi r, where r is the radius and C is the circumference. The equation solved for r is r = C/2\pi .

Find the radius of a circle that has a circumference of 16\pi .
A. r = 4
B. r = 8
C. r = 12
D. r = 16

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polllyyou polllyyou

11-06-2020

B is the correct answer because the circumference of a circle is C = 2\pi r, where r is the radius should be 16/pi divided by 2/pi = 8

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