Question

Find the length of an arc of a circle with radius 15 cm if the arc subtends a central angle of 60°.

Answer 1

arc length = (πrθ)/180        [r=radius, θ=central angle, π≈3.14]

arc length = (3.14 * 15 * 60)/180 = 3.14 * 5 = 15.7 cm