Question

What is the circumference of the circle in terms of pi? The radius is 2.2

Answer 1

We will use formula for circumference of circle:
lets name it as O

O = 2*r * pi

when we express r in this formula we get:

O = 2*2.2*pi
O = 4.4*pi

From this we can see that for given radius, answer is 4.4. The formula only depends on pi and that is what "in terms of pi" means.

Answer 2

I hope this helps you



circumference=pi.r^2



circumference=pi. (2,2)^2


circumference=4,84.pi