Posted by Missy on .
The circumference of a circle is 12.56 centimeters. What is the approx. measure of the circle's radius?
A. 2
B. 2.5
C. 4
D. 8
I think that the Diameter would be 4.18 so the radius would be 2.04 or rounded to 2.

Circumference,Radius, Diameter 
DrBob222,
You are correct that the answer is 2 but you didn't work it properly. You divided 12.56/3 = 4.18, took 1/2 of that to obtain 2.09 and rounded to 2.00. BUT, pi is 3.14 which gives 12.56/3.14 = 4.00 and that divided by 2 = 2.00. Your teacher may have told you to use 3 for pi but I'm just pointing out that there are more significant figures in 12.56 than one.

Circumference,Radius, Diameter 
Anonymous,
ducks

Circumference,Radius, Diameter 
frezxzz,
plz!!!!!!!!!!!!!!!!

Circumference,Radius, Diameter 
Aissata,
well the answer i got was 8 because mulitilple the it

Circumference,Radius, Diameter 
Anonymous,
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