Question

What is the radius of a circle in which a 30° arc is 2 inches long? 24 inches 12 inches 2 root 3

Answer 1

Explanation:

θ=l/r

where θ is in radians.

θ=30 =Π/180 ×30=π/6

π/6=2/r

πr=12

r=12/π≈3.82 in

2√3≈3.46

which is near to 3.82