Question

.The surface area of hemisphere of base radius 7 cm is *
1 point
308 sq.cm
616 sq.cm
704 sq.cm
462 sq.cm
2.If the dimenscions of the cuboid are 3 cm,4 cm and 10 cm then its surface area is -------sq.cm *
1 point
82
123
164
216
3. The area of metal sheet required to make a closed cylinder of height 1 m and base diameter 140 cm is ------------ sq.m *
2 points
7.48
6.48
5.48
6.45
4.quantity of milk in litres , a hemispherical bowl of radius 10.5 cm can hold is *
2 points
2.47
2.426
2.376
3.476
5.Base radius of 2 cylinders are in the ratio 2:3 and their heights are in the ratio 5:3. The ratio of their volume is *
2 points
27:20
25:24
20:27
15:20
6.The capacity of a cuboidal tank is 50000 litres.The length and depth are respectively 2.5 m and 10 m.Its breadth is *
2 points
4 m
3 m
2 m
5 m
7.The curved surface area of a sphere is 616 sq.cm.Its radius is *
2 points
7 cm
5 cm
6 cm
8 cm
8.A right triangle with sides 6 cm ,8 cm and 10 cm is revolved about the side 8 cm. Find the volume and the curved surface area of the solid so formed(pi=3.14) *

Answer 1

Step-by-step explanation:

Such a big question........