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The formula below relates the circumference of a circle C to its radius r.

(Recall that π is the constant ratio of circumference to diameter.)

 

C = 2πr 

Solve this formula for r

 

  1. r = 2n/ C
  2. r = n/2C
  3. r = 2C/n
  4. r = C/2n
 Jan 30, 2015

Best Answer 

 #1
avatar+26367 
+5

C = 2πr     Solve this formula for r


$$\small{\text{$
r= \dfrac{C}{2\pi}
$
}}$$


 Jan 30, 2015
 #1
avatar+26367 
+5
Best Answer

C = 2πr     Solve this formula for r


$$\small{\text{$
r= \dfrac{C}{2\pi}
$
}}$$


heureka Jan 30, 2015

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