2007-10-24 09:42:22 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
if radius , r , is known , diameter d = 2 r
C = 2 π r
OR
C = π d
2007-10-28 08:19:24 · answer #1 · answered by Como 7 · 0⤊ 0⤋
Circumference of a circle = 2 * pi * Radius
2007-10-24 16:47:05 · answer #2 · answered by gmat g 3 · 0⤊ 0⤋
C=2 (pi) R
or
C= (pi) D
R=Radius
pi= 3.14
D= Diameter
2007-10-24 16:50:29 · answer #3 · answered by Andrea 4 · 0⤊ 0⤋
2 times 3.141 times radius
2007-10-24 16:49:46 · answer #4 · answered by Robert Y 2 · 0⤊ 0⤋
the formula is 2(pi)r where r is the radius and pi is usually rounded to 3.14
2007-10-24 16:48:01 · answer #5 · answered by Apium 2 · 0⤊ 0⤋
2(pi)(radius) or (diameter)(pi).
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2007-10-24 16:47:28 · answer #6 · answered by Newbody 4 · 0⤊ 0⤋
pie (3.14) times r (radii) squared (2nd power)
2007-10-24 16:52:16 · answer #7 · answered by acuffie22 2 · 0⤊ 0⤋