MEDIUM
10th ICSE
IMPORTANT
Earn 100

The difference of the surface areas of two spheres is 3080 cm2. If the radius of the larger sphere is 21 cm, then find the difference of their volumes.

50% studentsanswered this correctly

Important Questions on Surface Area and Volume

MEDIUM
10th ICSE
IMPORTANT
All In One ICSE Mathematics Class 10>Chapter 17 - Surface Area and Volume>Topic Exercise>Q 8
The diameter of a sphere is decreased by 25%. By what percent does its curved surface area decrease?
MEDIUM
10th ICSE
IMPORTANT
All In One ICSE Mathematics Class 10>Chapter 17 - Surface Area and Volume>Topic Exercise>Q 9
Find the surface area and volume of a spherical shell, whose external and internal radii are 7 cm and 5 cm, respectively. [Take π=3.14]
EASY
10th ICSE
IMPORTANT
All In One ICSE Mathematics Class 10>Chapter 17 - Surface Area and Volume>Topic Exercise>Q 10
If radius of a hemisphere be 42 cm, then find its curved surface area in cm2. Use π=227
MEDIUM
10th ICSE
IMPORTANT
All In One ICSE Mathematics Class 10>Chapter 17 - Surface Area and Volume>Topic Exercise>Q 10
If radius of a hemisphere be 42 cm, then find its total surface area.
MEDIUM
10th ICSE
IMPORTANT
All In One ICSE Mathematics Class 10>Chapter 17 - Surface Area and Volume>Topic Exercise>Q 10
If radius of a hemisphere be 42 cm, then find its volume.
MEDIUM
10th ICSE
IMPORTANT
All In One ICSE Mathematics Class 10>Chapter 17 - Surface Area and Volume>Topic Exercise>Q 11
The radius of a hemispherical balloon increases from 6 cm to 12 cm as air is being pumped into it. Find ratio of the surface areas of the balloon in the two cases.
MEDIUM
10th ICSE
IMPORTANT
All In One ICSE Mathematics Class 10>Chapter 17 - Surface Area and Volume>Topic Exercise>Q 12
A hemispherical bowl is made of steel, 0.25 cm thick. The inner radius of the bowl is 5 cm. Find the outer curved surface area of the bowl. [Take π=227]
HARD
10th ICSE
IMPORTANT
All In One ICSE Mathematics Class 10>Chapter 17 - Surface Area and Volume>Topic Exercise>Q 13
Find the volume, curved surface area and total surface area of a hemisphere of diameter 12.6 cm. [Take π=227]