MEDIUM
9th CBSE
IMPORTANT
Earn 100

In a cylinder, if radius is halved and height is doubled then the volume will be

50% studentsanswered this correctly

Important Questions on Surface Areas and Volumes

MEDIUM
9th CBSE
IMPORTANT

In a cylinder, if radius is doubled and height is halved then its curved surface area will

MEDIUM
9th CBSE
IMPORTANT
If a well of diameter 8 m has been dug to the depth of 14 m, then the volume of the earth dug out is
MEDIUM
9th CBSE
IMPORTANT
If two cylinders of the same lateral surface have their radii in the ratio 4:9, then the ratio of their heights is
MEDIUM
9th CBSE
IMPORTANT
The radii of two cylinders are in the ratio 2:3 and their heights are in the ratio 5:3. The ratio of their volumes is
MEDIUM
9th CBSE
IMPORTANT
The total surface area of a cone whose radius is r2  and slant height 2l is
MEDIUM
9th CBSE
IMPORTANT
If the diameter of the base of a cone is 10 cm and its height is 12 cm, then its curved surface area is
MEDIUM
9th CBSE
IMPORTANT
If the diameter of the base of a cone is 12 cm and height is 20 cm, then its volume is 
EASY
9th CBSE
IMPORTANT
If the diameter of a sphere is increased by 20%, then its radius increases by