## In a circle of radius 28 cm, an arc subtends an angle of 45° at the centre, then find the length of the arc (in cm).​

Question

In a circle of radius 28 cm, an arc subtends an angle of 45° at the centre, then find the length of the

arc (in cm).​

in progress 0
2 months 2021-08-06T07:52:09+00:00 1 Answers 0 views 0

## Answers ( )

1. Sector (OAPBO) of a circle is given whose
radius(r)=28cm
and central angle (θ)=45

∴ Area of sector (A)=
360

πr
2
θ

=
7
22

×
360

28×28×45

⇒ Area of sector =308cm
2
is the required area.
solution