Question

In the following figure is a sector of circle of radius 10.5 cm. Find the perimeter of the sector. `("Take"  π = 22/7)`

Answer 1

Perimeter of the sector

= `2r + (2πrθ)/(360^circ)`

= `2 xx 10.5 + (2 xx 22 xx 10.5 xx 60^circ)/(7 xx 360^circ)`

= 21 + 11

= 32 cm