Question

Find the circumference of each circle. A circle with a radius of 3 1/9yd

Answer 1

The formula to calculate the circumference of a circle is:

`C=2\pi r`

where r is the radius.

From the question, we have the radius to be:

`r=3(1)/(9)`

In improper fraction, the radius will be:

`r=(28)/(9)`

Therefore, the circumference of the circle is calculated to be:

`C=2*(22)/(7)*(28)/(9)=(176)/(9)`

In mixed fraction, the circumference will be:

`C=19(5)/(9)\text{ yd}`