The length of a minute hand on a wall clock is 7 cm. Then the area swept by it in 30 minutes is:

A  horse is tied to a pole with 28 m long string. The area where the horse can graze is:

The perimeters of a circular and a square field are equal. If the area of the square field is 484 m², then the diameter of the circular field is:

If the diameter of a semicircular protractor is 14 cm , then its perimeter is:

The area between two concentric circles having radii 70 cm and 50 cm is:

A chord of a circle of radius 14 cm subtends a right angle at the centre. Then , the area of the minor sector is :

The perimeter of a sector of angle 45^o of a circle with radius 7 cm is:

If an arc makes an angles of 72^o at the centre of a circle of radius 10 cm, then its length is:

Area of sector of a circle with radius R and of angle P is

If the perimeter of a semicircular protractor is 36 cm , then its diameter is: