Circumference of Circle C

To calculate the circumference, we need to use a formula.

The formula for circumference: 2 r
Or in other words “circumference= 2 x x r

The “r” is radius.

In the photo, I see you are given the diameter. Which is 10/. The radius is just half of the diameter, so you can just divide 10/ by 2.

Then, using the formula, use your calculator and type in “2 x x (whatever 10/ divides by 2 is).

Now, you have your answer!!
P.s your answer should be 10cm.