Question

Find the arc length s, of an arc with central angle θ=210∘ and radius r=5cm.

Answer 1

The relationship between radius (r), angle (θ), and arc length (s) is given by
.. s = r*θ . . . . . . . . θ in radians
.. s = (5 cm)*(210π/180)
.. s = 35π/6 cm
.. s ≈ 18.33 cm