Question

The radius of a circle is 17.5 find the area of a sector enclosed by the two radii and a arc of 44 cm in length

Answer 1

Here arc length; Cs =44 cm
Radius of a circle; r = 17.5 cm
So, area of sector = Cs/2πr×πr2

=44/2π×17.5×π×(17.5)(17.5)
=22×17.5
=385 cm sq.

Answer 2

Here arc length; Cs =44 cm

Radius of a circle; r = 17.5 cm

So, area of sector =

Cs2πr×πr2

=442π×17.5×π×(17.5)2

=22×17.5= 385 cm2