Question

A sector of a circle of radius 14cm subtends an angle of 72 degrees at the centre

of the circle. find the perimeter of the sector

Answer 1

Explanation:

The entire perimeter of the circle (360 degrees) is given by pi* 2r

you want 72/360 ths of this PLUS two radii of 14 cm

72/360 * pi * 2 * 14 + 2* 14 = 45.59 cm