[" n arc of length "20 pi cm" subtends an angle of "144" at the centre of the circle.Find the radius of "],[" coircle."]

An arc of length 20 pi cm subtends an angle of 144o at the centre of a circle.Find the radius of the circle.

An arc of length 20pi cm subtends an angle of 144o at the centre of a circle. Find the radius of the circle.

An arc of length 15cm subtends an angle of 45o at the centre of a circle.Find in terms of pi ,the radius of the circle.

An arc of length 15 cm subtends an angle of 45^@ at the center of a circle. Find in terms of pi , the radius of the circle.

An area of length 4pi cm .subtends an angle 40^@ at the center of a circle.Find the area of the sector produced by the arc.

In a circle, if an arc of 220 cm length subtends an angle of measure 63^@ at the centre, then determine the radius of the circle.

In a circle, if an arc of 220 cm length subtends and angle of measure 60^@ at the centre, then determine the radius of the circle

Find the length of an arc of circle which subtends an angle of 108^@ at the centre, if the radius of the circle is 15cms.

Find, in terms of pi , the length of the arc that subtends an angle of 30^o at the centre of a circle of radius 4 cm.