Answer:
Arc length = 10 pi.
Step-by-step explanation:
Given : Circle W has a radius of 20 in and right central angle.
To find :Find the length of arc in term of pi.
Solution : We have given that Radius of circle = 20 in .
Central angle = 90
Arc length = 2 *pi* r ([tex]\frac{central\ angle}{360}[/tex].
= 2 * pi * 20 ([tex]\frac{90}{360}[/tex].
Arc length = 40* 0.25 pi
Arc length = 10 pi.
Therefor, Arc length = 10 pi.
