What are the diameter and radius of a circle with a circumference of 48π yd?

A.
d = 24 yd
r = 12 yd

B.
d = 24 yd
r = 48 yd

C.
d = 12 yd
r = 24 yd

D.
d = 48 yd
r = 24 yd

Question

What are the diameter and radius of a circle with a circumference of 48π yd?

 	
	   
  A. 	
d = 24 yd 
r = 12 yd
	   
  B. 	
d = 24 yd 
r = 48 yd
	   
  C. 	
d = 12 yd 
r = 24 yd
	   
  D. 	
d = 48 yd 
r = 24 yd

anonymous · Answer

really need help

anonymous · Answer

were you going to type something

jdoe0001 · Answer

$\bf {\color{red}{ \textit{circumference of a circle}}}=2\pi r
\ \quad \
{\color{red}{ 48\pi}}=2\pi r\implies \cfrac{48\pi}{2\pi}=r\qquad diameter=r+r\implies 2r
$

anonymous · Answer

it was  D.
d = 48 yd 
r = 24 yd
got confused but thanks