The angle of a sector is `120^(@)` and its radius is 21 cm.
The area of the sector is ______.

The central angle of a sector is 240^@ and radius is 12 cm, then the area (in sq cm ) of the sector is

The measure of central angle of a circle is 60^(@) and the radius of circle is 21 cm. Find the area of the sector associated withh the central angle.

The measure of central angle of a circle is 60^(@) and the radius of circle is 21 cm. Find the area of the sector associated withh the central angle.

The angle of a sector of radius 14 cm is 90^(@) . The area of the sector is ________.

If the angle of a sector is 30^(@) and the radius of the sector is 21 cm, then length of the arc of the sector is ______.

If the length of an arc of sector of a circle is 20 cm and if its radius is 7 cm, find the area of the sector.