MEDIUM
9th CBSE
IMPORTANT
Earn 100

Find the curved surface area of a hemisphere of radius 21cm.

Important Questions on Surface Areas and Volumes

MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 10
Find the total surface area of a hemisphere of radius 21cm.
MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 11
The hollow sphere in which the circus motor cyclist performs his stunts, has a diameter of 7m. Find the area available to the motorcyclist for riding.
MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 12
A hemispherical dome of a building needs to be painted. If the circumference of the base of the dome is 17.6m, find the cost of painting it. Given the cost of painting is ₹ 5per 100cm2.
MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 13
The edge of a cube is 12cm. Find its volume.
MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 14
A wall of length 10m was to be built across an open ground. The height of the wall is 4m and thickness of the wall is 24cm. If this wall is to be built up with bricks whose dimensions are 24cm×12cm×8cm, how many bricks would be required?
MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 15
The figure is a structure made up of cubes (blocks). If the edge of each cube is 3cm, find the volume of the structure.
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MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 16
If the diameter of the base of right circular cylinder is 28cm and its height is 30cm, then find its volume.
MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 17
If the base radius and height of a cylinder are 7cm and 13cm respectively, then find its volume.