A circle has a circumference of 16'pi' feet. What is the radius of the circle, in feet? A. square root of 8 B. 4 C. 8 D. 16 E. 32

asked Oct 26, 2015 77.5k views

1 vote

A circle has a circumference of 16'pi' feet. What is the radius of the circle, in feet?

A. square root of 8
B. 4
C. 8
D. 16
E. 32

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3 votes

$C=16\pi ft.\\\\C=2\pi r\ (r-radius)\\\\2\pi r=16\pi\ \ \ /:2\pi\\r=8\ (ft.)\\\\Answer:C$

Darren Ford answered Oct 31, 2015

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