Find the area of a sector of a circle with radius 6 cm if angle of the sector is 60°.

Find the area of a quadrant of a circle whose circumference is 22 cm.

A chord of a circle of radius 10 cm subtends a right angle at the centre. Find the area of the corresponding :

(i) minor segment

(ii) major sector.

(Use π = 3.14)

In a circle of radius 21 cm, an arc subtends an angle of 60° at the centre. Find:

(i) the length of the arc

(ii) area of the sector formed by the arc

(iii) area of the segment formed by the corresponding chord