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9th CBSE
IMPORTANT
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If two cylinders of the same lateral surface have their radii in the ratio 4:9, then the ratio of their heights is

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Important Questions on Surface Areas and Volumes

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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 13 - Surface Areas and Volumes>Multiple Choice Questions>Q 13
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
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 13 - Surface Areas and Volumes>Multiple Choice Questions>Q 14
The total surface area of a cone whose radius is r2  and slant height 2l is
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 13 - Surface Areas and Volumes>Multiple Choice Questions>Q 15
If the diameter of the base of a cone is 10 cm and its height is 12 cm, then its curved surface area is
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 13 - Surface Areas and Volumes>Multiple Choice Questions>Q 16
If the diameter of the base of a cone is 12 cm and height is 20 cm, then its volume is 
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 13 - Surface Areas and Volumes>Multiple Choice Questions>Q 17
If the diameter of a sphere is increased by 20%, then its radius increases by
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 13 - Surface Areas and Volumes>Multiple Choice Questions>Q 18
If the radius of a sphere is 2r, then its volume will be 
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 13 - Surface Areas and Volumes>Multiple Choice Questions>Q 19
If the diameter of a sphere is 16 cm, then its surface area is 
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9th CBSE
IMPORTANT
CBSE Syllabus Standard Mathematics for Class IX>Chapter 13 - Surface Areas and Volumes>Multiple Choice Questions>Q 20
If the radius of a hemisphere is 5 cm, then its volume is