Question

The radius of a circle is 9 meters. What is the length of a 45° arc?

Answer 1

7.07m

Explanation:

radius = 9m, ∅ = 45

length of arc = ∅/360 * 2πr

=> 45/360 * 2 * 22/7 * 9

=> 99/14 = 7.07m

hope this helps!