Question

Find the length of arc DC

Answer 1

Explanation:

The length of an arc can be obtained using the formula:
`2\pi r((\theta)/(360))`

Using this formula we can substitute in the variables as needed.

We know that:

`\pi = 3.14r = 4\theta = 115`°

So plugging them in we get the following:

`2\pi r((\theta)/(360))` =
`2*3.14 *4((115)/(360))=8.02`

So the length of the arc
`DC`
`= 8.02`