Quiz Time Class 9th Surface Area and Volume

Curved surface area of a right circular cylinder is 4.4 m2. If the radius of the base of the cylinder is 0.7 m, find its height.

A hemispheric dome of radius 3.5 m is to be painted at a rate of ₹600/m2. What is the cost of painting it? (Take π = 22/7)

If the surface area of a sphere of radius “R” is equal to the curved surface area of a hemisphere of radius “r”, what is the ratio of R/r?

The diameter of a sphere whose surface area is 346.5 cm2 is

A matchbox measures 4 cm x 2.5 cm x 1.5 cm. The volume of the packet containing 12 such boxes is:

What is the total surface area of a cone of radius 7cm and height 24cm? (Take π = 22/7)

. The diameter of the moon is approximately one-fourth of the diameter of the earth. What fraction of the volume of the earth is the volume of the moon?

Two right circular cones of equal curved surface areas have slant heights in the ratio of 3 : 5. Find the ratio of their radii.

If a right circular cone has a radius of 4 cm and a slant height of 5 cm then what is its volume?

Total surface area of a hemisphere is 4158 cm2 then the diameter of the hemisphere is equal to __________ cm. (Take π = 22/7)