2006-09-13 03:34:19 · 9 answers · asked by Douglas S 1 in Education & Reference ➔ Other - Education
times the diameter by 2
2006-09-13 03:36:42 · answer #1 · answered by interestiblez 2 · 1⤊ 0⤋
It depends on what kind of a figure you are refering to,
If it is a circle then u find the radius, Multiply it by 2*3.14.
If its any other figure the circumference is also the perimeter, so all u have to do is get the sum of all the sides.
2006-09-13 10:38:56 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Circle
The circumference of a circle can be calculated from its diameter using the formula:
c = Ïd
Or, substituting the radius for the diameter:
c = 2Ïr
2006-09-13 10:36:55 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Usually you take a tape measure and wrap it all the way around the edge ;)
Otherwise, if you have to calculate it from something else, it's 2 x pi x radius
2006-09-13 10:42:37 · answer #4 · answered by C-Man 7 · 1⤊ 1⤋
I'm pretty sure it's Pi (3.14) multiplied by the diameter of the circle.
2006-09-13 10:37:44 · answer #5 · answered by Galaxy 3 · 1⤊ 1⤋
the distance across the circle (diameter) time Pi (which is about equal to 3.14
2006-09-13 10:37:53 · answer #6 · answered by mamagirl013 1 · 2⤊ 0⤋
If you know the radius, it is 2* Pi*R. Pi is 22/7.
2006-09-13 10:39:19 · answer #7 · answered by Anonymous · 0⤊ 2⤋
2 * Pi * radius
2006-09-13 10:43:04 · answer #8 · answered by Anonymous · 1⤊ 1⤋
run around it & see how long it takes...
2006-09-13 10:41:22 · answer #9 · answered by fairly smart 7 · 1⤊ 1⤋