Question

I need to help finding the length of the arc shown in red..

Answer 1

We have the next formula to find the length is

`\text{arc length }=\text{ 2}\pi r((\theta)/(360))`

where

r=10

theta=45°

`\begin{gathered} \text{arc length=}2\pi(10)(45)/(360)=(5)/(2)\pi \\ \end{gathered}`

the arc length is 5/2 pi cm