how do you find the circumferance of a circle
2006-08-24 11:47:57 · 9 answers · asked by Miranda loves Jimmie 1 in Education & Reference ➔ Homework Help
Pi x Diameter is the circumference
Pi x Radius squared is area of a circle
2006-08-24 11:51:13 · answer #1 · answered by quatt47 7 · 1⤊ 0⤋
First, that's Pi, no longer Pie. Pie is a fruit or meat filled pastry, no longer a mathematical term. Circumference = Pi * diameter C=?*d or Circumference = Pi * 2 * radius C=2?r in the experience that your words are 31.4=r C=2*3.14*31.4 C=197.192 cm in the experience that your words are 37.sixty 8=d C=3.14*37.sixty 8 C=118.3152 cm
2016-12-11 14:49:42 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Circumference = 2 x pi x the radius (which is half the diameter).
That's the same as
2 x pi x 1/2 d
which is simply pi times the diameter.
2006-08-24 11:57:12 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It's pi X radius squared, not pi X diameter.
Radius = diameter\2
so pi X (diameter\2)squared
What's the difference? If the diameter is 6, then the radius is 3. 3 squared is 9. Pi times 9 would be the curcumference, not Pi times 6.
2006-08-24 12:09:10 · answer #4 · answered by Anthony J 3 · 0⤊ 1⤋
pie times diameter divided by 2 i think
2006-08-24 11:52:12 · answer #5 · answered by tim 1 · 0⤊ 2⤋
C= pi x D
C=pi x 2R
2006-08-24 11:53:57 · answer #6 · answered by davidosterberg1 6 · 0⤊ 0⤋
its pi * diameter
or
pi * radius * 2
2006-08-24 11:53:12 · answer #7 · answered by MGoodrich 2 · 0⤊ 0⤋
c=πd or c=2πr.
2006-08-24 11:54:26 · answer #8 · answered by Derek Ikawa 2 · 0⤊ 0⤋
hey, no cheating on your homework!
2006-08-24 11:51:08 · answer #9 · answered by my2cents 4 · 0⤊ 2⤋