2007-09-21 20:19:18 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The formula is 2PIr.
Multiply the radius by 2 and then by PI.
2007-09-21 20:28:48 · answer #1 · answered by a_mom 4 · 4⤊ 0⤋
Look this example.
What is the circumference of a circle with radius 3 units ?
radius = 3
C = 2 * PI * r
circumference = 2 * PI * 3
circumference = 2 * (22/7) * 3
circumference = 18.8571
So the circumference is 18.8571 units
2014-01-21 04:33:56 · answer #2 · answered by Anonymous · 0⤊ 1⤋
The formula to fine the circumference of a circle is: 2 x 3.14 (pi) x the radius
2016-03-08 10:48:48 · answer #3 · answered by # Fro$Twolf 1 · 1⤊ 0⤋
RE:
how to find the circumference of a circle with the radius?
2015-08-04 13:15:48 · answer #4 · answered by ? 1 · 1⤊ 0⤋
2 x 3.l4(which is the p) x radius
2007-09-21 20:33:23 · answer #5 · answered by Anonymous · 3⤊ 0⤋
C=3.14d, since radius is 1/2 od d, then multiply the radius to 2 and 3.14
C=(3.14)(2r)
2007-09-21 20:29:00 · answer #6 · answered by criselda 3 · 2⤊ 1⤋
pi times 2(radius)
2007-09-21 20:27:19 · answer #7 · answered by BotanyDave 5 · 1⤊ 3⤋
circumference = 2x(pi)xradius
pi= 3.14159265358979
2007-09-21 20:26:37 · answer #8 · answered by Anonymous · 2⤊ 0⤋
trolino
2014-02-25 09:32:22 · answer #9 · answered by Dev 1 · 1⤊ 0⤋