Help !!!!
2007-03-05 03:50:03 · 15 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
wow.. I used to know how to do this.. amazing what you forget when you have kids.. OMG.. Someday I am going to have to help with their homework.. YIKES!!!!!!!!!!!!!!!!!!!!!!!!!!! I went throught advanced algebra and advanced geometry.. I got A's in them.. now this all looks like greek to me... oh man..lol..
2007-03-05 03:58:47 · answer #1 · answered by Anonymous · 0⤊ 0⤋
We know that the circumference of a circle is equal to 2*pi*r where,pi=3.14 and r is the radius of the circle
So if we divide the circumference by 2*pi,we get the radius of the circle
2007-03-05 04:02:38 · answer #2 · answered by alpha 7 · 0⤊ 0⤋
The circumference of a circle is 2 x pi x radius, so if you know the circumference divide by 2 pi and that's your radius.
2 pi is 6.283184.
i hope that helps
2007-03-05 05:03:52 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The circumference of a circle is 2 x pi x radius, so if you know the circumference divide by 2 pi and that's your radius.
2 pi is 6.283184.
2007-03-05 03:55:13 · answer #4 · answered by Sky B 2 · 0⤊ 0⤋
C=2xpixr
Therefor
r=C/2xpi
where C = circumference and r = radius.
2007-03-05 04:19:41 · answer #5 · answered by scamp 3 · 0⤊ 0⤋
Since the circumference is = diameter * Pi divide the circumference by Pi and you get the diameter and the radius is half the diameter.
2007-03-05 04:11:13 · answer #6 · answered by ikeman32 6 · 0⤊ 0⤋
divide the circumference by 2*pi
2007-03-05 03:53:36 · answer #7 · answered by SS4 7 · 0⤊ 0⤋
Divide circumference by π then the diameter by 2
( π is found on a scientific calculator ( 3.142 ))
2007-03-05 04:18:08 · answer #8 · answered by Juliet 18 2 · 0⤊ 0⤋
circumference = 2*pi*radius
work it out, it becomes,
radius=circumference/(2*pi)
ok??
2007-03-05 03:54:49 · answer #9 · answered by Iqbal 1 · 0⤊ 0⤋
the radius is half the diameter. and the circumfernce is the area around the circle.
pie(3.14 x r squared) is how to work out the diameter then u jus half it to find out the radius. gd luck
2007-03-05 03:59:06 · answer #10 · answered by shilpa n 3 · 0⤊ 0⤋
r = c/2pi
where r is radius
c is circumference
2007-03-05 03:54:51 · answer #11 · answered by ganesan 2 · 0⤊ 0⤋