The area of a circular plot is 9856 sq.m. Calculate the cost of fencing the plot at the rate of Rs. 6 per metre.
Rs. 2,112
Rs. 3,000
Rs. 2,101
Rs. 2,000
Find the circumference of the circle whose area is 16 times the area of the circle with diameter 1.4m.
16.7 m
17.6 m
17.7m
17 m
A racing track is bounded by two concentric circles with circumferences 220m and 286m. Calculate the area of the racing track.
2656.5 m2
2600 m2
2656 m2
2665.5m2
A sphere of radius 8cm is melted and recast into a right circular cone of height 32 cm. Find the radius of the base of the cone.
6 cm
8 cm
7 cm
9 cm
A solid metal sphere is cut through its centre into 2 equal parts. If the diameter of the sphere is , find the total surface area of each part correct to two decimal places.
20.88 cm2
25.89 cm2
28.86 cm2
28.88cm2
The volume of a sphere is 38808 cm3 , find its diameter and the surface area.
5454 cm2
4455 cm2
5544 cm2
5455 cm2
A solid rectangular block of metal 49 cm by 44 cm by 18 cm is melted and formed into a solid sphere. Calculate the radius of the sphere.
21 cm
20 cm
19 cm
25 cm
A solid cone of height 8cm and base radius 6 cm is melted and recast into identical cones, each of height 2cm and diameter 1 cm. Find the number of cones formed.
506
576
657
675
A cylinder has a diameter of 20cm. The area of curved surface is 100cm2 (sq.cm) and height is 1.6 cm. Find the volume of the cylinder correct to one decimal place.
600cm2
400cm2
500cm2
500.1cm2
The volume of the vessel, in the form of a right circular cylinder is 448 π cm3 and its height is 7 cm. Find the radius of the base.
8cm
9cm
5cm
10cm
