Find the degree of an angle subtended at the centre of a circle of diameter 50 cm by an arc of length 11 cm.

What is the angle substended at the centre of a circle of radius 4 cm by an arc of length 2pi

Find the area of a circle of radius 35 cm.

If the area of a circle is equal to the sum of the areas of two circles of diameters 10cm and 24 cm then diameter of the larger circle(in cm) is

The radius of a circle is 17.5 cm.Find the area of a sector made by an arc of length 44 cm.

Find the areas of the circles whose diameters are given below:(i)20 cm

Find the areas of the circles whose diameters are given below:(iv)2.4 cm

Find the areas of the circles whose diameters are given below:(ii)9.8 cm

Find the length of an arc of a circle of radius 5 cm subtending a central angle measuring 15^@ .

Find the areas of the circles whose diameters are given below:(iii)200 cm

From each cornor of a square of side 4 cm a quadrant of a circle of radius 1 cm is cut and also a circle of diameter 2 cm is cut as shown in Fig.12.23.Find the area of the remaining portion of the square.