Circumference,Radius, Diameter
posted by Missy on .
What is the area of the circle if the radius is 2 cm?
A. 3 cm squared
B. 6 cm squared
C. 10 cm squared
D. 12 cm squared
I don't really know the answer to this one because I am not sure what the formula for area of a circle is. If I knew the formula the maybe I could figure the answer.


pi r^2
or
pi*r*r (multiply)
if you use 3 for pi then you will get your answer. 
diameter gahhhh

the answer is 12 square