A round table cover has six equal designs as shown in figure on the side (shaded one). If the radius of the cover is 28 cm, find the cost of making the design at the rate of Rs, 0.85 per cm² . \([Use \ \ \sqrt{3}=1.7]\).

2

(a)

Two circles touch each other externally and the sum of their areas is \(52\pi { cm }^{ 2 }\) . If the distance between the centres of two circles is 10 cm, find the radii of the two circles.

2

(a)

In the given figure, from each corner of a square ABCD, of side 4 cm, quadrant of a circle of radius 1 cm each is cut and a circle of radius 1 cm is cut from the centre. Find the area of the shaded region.

 

2

(a)

Find the area of the shaded region which contains two semicircles and a rectangle of breadth 1 cm.

2

(a)

In the adjoining figure, O is the centre of the bigger circle and AC is its diameter. Another circle with AB as diameter is drawn. If AC = 54 cm and BC = 10 cm; find the area of the shaded region.

2

(a)