How do you calculate the radius of a circle?

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If you know the Circumference?

2007-01-09 11:23:50 · 3 answers · asked by youronmyfoot 2 in Science & Mathematics ➔ Mathematics

C=2*PI*R
R=C / (2*PI)

2007-01-09 11:30:24 · answer #1 · answered by Antonio R 3 · 0⤊ 0⤋

r = radius
c = circumference

r = c/(2Ï)

2007-01-09 19:31:02 · answer #2 · answered by Northstar 7 · 0⤊ 0⤋

we know
C=2*PI*R

Therefore:

R=C/(2*PI)

2007-01-09 19:33:54 · answer #3 · answered by BKN 2 · 0⤊ 0⤋