Question

HELP ASAP! GIVING BRAINLIEST!!

What is the length of the indicated arc?

A) (1/7) pi

B) (3 1/2) pi

C) 7 pi

D) 14 pi

E) none of the above

Answer 1

Answer:

C) 7 pi

Step-by-step explanation:

Arc length is circumference

C = 2 * pi *r

C = 2*pi*7

C=14pi

A circle is 360 degrees.  This arc is 180 degrees.

180/360 = 1/2

The arc is 1/2 the circle, so it is 1/2 the circumference

1/2C = 1/2 (14pi)

arc = 7 pi