Here's the question you clicked on:
siddy20
Find the circumference of 2 inches.
Is this for a circle with radius 2 inches, or diameter 2 inches?
Then the formula for a circumference of a circle is \[\pi*d=\pi*2=2\pi\] where d = diameter, and that's just pi
or more specifically, \[2\pi\] inches to keep the units
Just find the area please.
Yes there is: The formula for area is \[2\pi*r^2\] where r = radius Now you need to know that diameter = 2*radius So d = 2r Since d = 2 2 = 2r r = 1 So the area is \[2\pi*r^2=2\pi(1)^2=2\pi \] in inches^2 as units