Question

Find the arc length of the partial circle..

Answer 1

The arc length of the partial circle is
`6\pi\ units`

Explanation:

we know that

The circumference of a circle is equal to

`C=2\pi r`

In this problem we have a 3/4 of a circle

so

the circumference is equal to

`C=((3)/(4))2\pi r`

`C=(3)/(2)\pi r`

we have

`r=4\ units`

substitute

`C=(3)/(2)\pi (4)`

`C=6\pi\ units`