Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 9

MEDIUM

9th CBSE

IMPORTANT

Earn 100

Find the surface area of a sphere of radius $7 c m$ .

Important Questions on Surface Areas and Volumes

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9th CBSE

IMPORTANT

Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 10

Find the curved surface area of a hemisphere of radius

21 c m

.

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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

21 c m

.

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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

7 m

. Find the area available to the motorcyclist for riding.

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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

17.6 m

, find the cost of painting it. Given the cost of painting is ₹

5

per

100 {c m}^{2}

.

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9th CBSE

IMPORTANT

Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 13

The edge of a cube is

12 c m

. Find its volume.

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9th CBSE

IMPORTANT

Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 14

A wall of length

10 m

was to be built across an open ground. The height of the wall is

4 m

and thickness of the wall is

24 c m

. If this wall is to be built up with bricks whose dimensions are

24 c m \times 12 c m \times 8 c m

, how many bricks would be required?

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9th CBSE

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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

3 c m

, find the volume of the structure.
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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

28 c m

and its height is

30 c m

, then find its volume.