131k views
3 votes
The radius of a circle is 6 feet. What is the length of a 180 arc

1 Answer

4 votes

Answer:

It should be
6\pi

Explanation:

To find the length of an arc, you need this formula:

Arc length
= (a)/(360) 2\pi r

-Use both the radius and the angle of the arc:


A = (180)/(360) 2\pi (6)

-Then, you solve:


A = (180)/(360) 2\pi (6)


A = (180)/(360) * 2 * \pi * 6


A = (1)/(2) * 2 * \pi * 6


A = \pi * 6


A = 6\pi

So, the answer should be
6\pi .

User Smk
by
4.4k points