Surface area and Volume Class 9th
Surface area and Volume
1 / 10
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.
2 / 10
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)
3 / 10
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?
4 / 10
The diameter of a sphere whose surface area is 346.5 cm2 is
5 / 10
A matchbox measures 4 cm x 2.5 cm x 1.5 cm. The volume of the packet containing 12 such boxes is:
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What is the total surface area of a cone of radius 7cm and height 24cm? (Take π = 22/7)
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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?
8 / 10
Two right circular cones of equal curved surface areas have slant heights in the ratio of 3 : 5. Find the ratio of their radii.
9 / 10
If a right circular cone has a radius of 4 cm and a slant height of 5 cm then what is its volume?
10 / 10
Total surface area of a hemisphere is 4158 cm2 then the diameter of the hemisphere is equal to __________ cm. (Take π = 22/7)
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