Make " r" the subject
1. C= 2 **pie** R
I dont have the "pie" sign so its hard to type... 2"pie"R
2007-01-06 21:48:13 · 8 answers · asked by CottonMusk_095 2 in Science & Mathematics ➔ Mathematics
To do this, you must understand the rule of sign changing when you move between the = sign
ie.
when you move from left to right,
Addition need to change to Subtraction
Subtraction need to change to Addition
Multiplication need to change to Division and
Division need to change to Multiplication
The same rule apply if you move from right to left as well.
There is no easy way out but to memorised the above rule.
Once the above is understood, solve the equation will be easy :
c=2pieR rewrite to
2pieR=c
pieR=c/2
R=c/2pie
2007-01-06 22:04:49 · answer #1 · answered by cls22cls 2 · 0⤊ 0⤋
C=2*pie*r
divide both sides by (2*pie)
this is justified as 2*pie is a constant not equal to zero.
therefore,
[C/(2*pie)] = (2*pie*r)/(2*pie)
therefore,
r = C/(2*pie)
2007-01-06 23:10:58 · answer #2 · answered by angad m 2 · 0⤊ 0⤋
Our state merely replaced the in step with annum try, and the recent ones are horror thoughts on paper. The third grade one, which I suggested given for the first time very last year, had issues a lifeless ringer for this, besides the actual incontrovertible truth that it's not a third grade accepted. Now, it truly is actual a huge gamble, yet i'm merely about guessing that your baby is arising on a standardized try, and the instructor is making an attempt to practice the scholars for that try. the instructor in all likelihood has considered pattern tests, and is merely attempting to be particular that the scholars have a minimum of considered the achievable sorts of issues a minimum of once earlier the truthfully try. sure, the standardized sorting out is ridiculous in this sort of count number. sure it truly is merely too troublesome for third grade students. yet, it truly is there. there is not plenty a instructor can do except practice the scholars as perfect as she (or he) can. Please enable us understand in case you locate out why a topic this demanding change into given for your baby.
2016-12-01 23:04:15 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Circumference of a circle formula
Solving for r
c = 2 π r
c / 2π = r
- - - - - - - -s-
2007-01-06 22:20:45 · answer #4 · answered by SAMUEL D 7 · 0⤊ 0⤋
R=C/2pi. (c over 2 x pi) .
2007-01-06 21:51:37 · answer #5 · answered by Anonymous · 0⤊ 0⤋
well I think the answer is R=c/2**pie.Is that correct?
2007-01-06 22:07:56 · answer #6 · answered by Anonymous · 0⤊ 0⤋
i got it i got it its coming to me its coming to me yes finaly i remembered its ....oh i dont know
2007-01-06 21:50:29 · answer #7 · answered by hamihum 2 · 0⤊ 0⤋
R= C/(2Pi)
2007-01-06 22:18:45 · answer #8 · answered by sweetdreams 2 · 0⤊ 0⤋