An arc of a circle is a length 5`pic m` and the sector it bounds has an area of `20pic m^2` . Find the radius of the circle.

An arc of a circle is a length 5 pi cm and the sector it bounds has an area of 20 pi cm^(2). Find the radius of the circle.

If the area of a sector of a circle bounded by an arc of length 5pi cm is equal to 20pi\ c m^2 , then the radius of the circle is (a) 12 cm (b) 16 cm (c) 8 cm (d) 10 cm

If the area of a sector of a circle bounded by an arc of length 5pi cm is equal to 20pi\ c m^2 , then the radius of the circle is (a) 12 cm (b) 16 cm (c) 8 cm (d) 10 cm

If a sector of a circle has an arc length of 2pi inches and an area of 6pi square inches, what is the length of the radius of the circle?

The length of the perimeter of a sector of a circle is 20 cm. Give an expression for the area of the sector in terms of r(the radius of the circle) and hence find the maximum area of the sector.

The radius of the circle is 3.5 cm and the area of sector is 3.85 sq cm. Find the measure of the arc of the circle.

If the area of sector and length of the arc of the sector are 54 cm^(2) and 18 cm respectively, then the radius of the circle is

If the area of sector and length of the arc of the sector are 54 cm^(2) and 18 cm respectively, then the radius of the circle is

Radius of a sector of a circle is 21 cm. If length of arc of that sector is 55 cm, find the area of the sector.