Question

A radius of a circle 7cm subtends an angle 30degree at the centre find the perimeter of the sector

Answer 1

Answer:

perimeter of the segment = (Angle / 360) * pi * radius^2

= (30 / 360) * (22/7) * 7 * 7

= (1/12) * 22 * 7 = 154 / 12 = 77/6 = 12.83 cm^2