Question

03
OAB is the sector of a circle of radius rcm.
AOB =60 degrees
Find, in its simplest form, an expression in terms of r and pi for
(a) the area of the sector,
B
[2]
(b) the perimeter of the sector,

Answer 1

Answer:

Perimeters and areas of simple closed figures. ... Area of the sector of a circle of radius r with central angle θ = 2 θ ... then area of the sector is. (A). 2 π360θ r. (B). 2 π180θ r. (C) 2 π360 θ r .