Mensuration class 10

The lateral surface area of a cylinder is 352 cm² . Find its height if its diameter is 7cm

• 7 cm

• 14 cm

• 8 cm

• 16 cm

The ratio of radii of two cylinders are 2 : 3 and ratio of their heights is 3 : 2. find the ratio of their volumes.

• 12 : 7

• 4 : 9

• 2 : 3

• 3 : 2

The radius and height of a right circular cone are 7 cm and 24 cm. Then its curved surface area is

The volumes of two spheres are in the ratio 64 : 27 , Then the ratio of their surface area is

• 16 : 9

• 9 : 16

• 4 : 3

• 3 : 4

A solid cylinder of iron whose diameter is 15 cm and height is 10 cm is melted and recasted into a sphere, then the radius of the sphere is

• 15 cm

• 10 cm

• 7.5 cm

• 5 cm

Find the total surface area of the given solid

A solid metallic sphere of radius 3 cm is melted and recasted into cones of radii 3 cm and heights 3 cm. Find number of cones

• 16

• 4

• 3

• 12

The number of balls of radius 2 cm that can be made from a sphere of radius 4 cm

• 2

• 4

• 8

• 64

The perimeter of the base of a cone is 88 cm and its slant height is 10 cm. Then find its curved surface area