## anonymous 4 years ago Which is the exact area of the circle? (PICTURE IS IN THE COMMENTS) 1. 81 sp ft 2. 81 (pi) sp ft 3. 81(pi)^2 sp ft 4. 81^2(pi) ^2 sp ft

1. anonymous

2. UnkleRhaukus

the area of a circle is $A_{\text{circle}}=\pi r^2$ where $$r$$ is the radius

3. anonymous

pir^2=pi*9*9 =81pi