how do i make 'r' the subject?
cheers
2006-12-05 02:19:06 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
pi=3.142 (approx) this is a constant
C = Circumference
r= radius
* = multiply
/ = divide
so r = C / (2*Pi)
basically divide by 2*Pi
2006-12-05 02:23:31 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Divide each side of the equation by 2 Pi
and you get r = C / 2 Pi
(C divided by 2 Pi)
2006-12-05 10:23:33 · answer #2 · answered by frenziedmonkey 3 · 1⤊ 0⤋
C = 2 Pi r
divide both sides by 2Pi
C/2Pi = r
Easy peasy.
NEXT!
2006-12-05 10:26:07 · answer #3 · answered by chopchubes 4 · 0⤊ 0⤋
simple transposition of formula
Divide Circumference by 2Pi
2006-12-05 10:37:44 · answer #4 · answered by Daddybear 7 · 0⤊ 0⤋
c=2.pi.r
divide both sides by 2.pi to isolate r (i.e. make its coefficient unity)
then
r = c / 2.pi
2006-12-05 10:30:41 · answer #5 · answered by yasiru89 6 · 0⤊ 0⤋
Divide by 2pi.
2006-12-05 10:21:07 · answer #6 · answered by mathematician 7 · 2⤊ 0⤋
c/(2pi)=r
As the previous answer suggests, you need to divide by 2pi.
2006-12-05 10:23:19 · answer #7 · answered by Anonymous · 1⤊ 0⤋
Do you mean solve for r?
r = c/2pi
2006-12-05 10:21:47 · answer #8 · answered by Anonymous · 0⤊ 0⤋
c=2pi r
c/2pi=2pi r/2pi
c/2pi=r
2006-12-05 10:24:18 · answer #9 · answered by lamyarhull 3 · 0⤊ 0⤋