Can somebody explain it to me in letters.
2007-02-08 20:26:06 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
pi times diameter
2007-02-12 09:49:27 · answer #1 · answered by cutest pooky 3 · 1⤊ 0⤋
The formula for circumference C of a circle of radius r or diameter d is:
C = 2* Pi* r = Pi * d.
The circumference of a circle is the product of its diameter and the irrational number Pi =3.14159 or 22/7 or 355/113. You can replace the diameter of the circle by twice its radius.
2007-02-09 04:35:53 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Circumference of a circle is 2* 3.142(pi)* radius (r) [ 2 Pi r] in plain words the circumference is twice the radius which is multiplied by this value called Pi which has got a value pre detrmined.
2007-02-09 04:45:27 · answer #3 · answered by kittana 6 · 0⤊ 0⤋
C = Ïd where d is the diameter of the circle and Ï = 22/7
As d= 2r where r is the radius, circumference may also be given by:-
C = 2 Ï r
2007-02-09 04:44:54 · answer #4 · answered by Como 7 · 0⤊ 0⤋
Circumference of a circle = 2*pi*r where pi is equal to 3.1416 and r is radius.
2007-02-09 04:31:35 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Circumference = 2*pi*r
where pi = 3.14(approx)
and r is the radius of circle
2007-02-09 04:29:57 · answer #6 · answered by @rrsu 4 · 0⤊ 0⤋
the circumference is two times pi times the radius of the circle. (pi is approximately 3.142)
2007-02-09 04:30:06 · answer #7 · answered by Mathendacil 2 · 0⤊ 0⤋
The formula for circumferrence of a circle is 2 Ï r.
I hope this helps,
Cheeky Chic
2007-02-09 05:18:41 · answer #8 · answered by Cheeky Chic 2 · 0⤊ 0⤋
2*pi*r where pi is the constant whose value is 22/7 or 3.14. use 22/7 if radius is divisble by 7 if not then use 3.14. And R is radius ofcourse. I hope you know!!
2007-02-09 05:59:01 · answer #9 · answered by Anonymous 2 · 0⤊ 0⤋
2 times Pie multiplied by radius
2007-02-09 04:42:32 · answer #10 · answered by Rash 1 · 0⤊ 0⤋