Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 11

MEDIUM

9th CBSE

IMPORTANT

Earn 100

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.

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 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}

.

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

12 c m

. 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

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?

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

3 c m

, 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

28 c m

and its height is

30 c m

, 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

7 c m

and

13 c m

respectively, then find its volume.

MEDIUM

9th CBSE

IMPORTANT

Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 18

The pillars of a temple are cylindrical shaped. If each pillar has a circular base of radius

20 c m

and height

10 m

, how much concrete mixture would be required to build

14

such pillars?

MEDIUM

9th CBSE

IMPORTANT

Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 19

The radius and the height of a right circular cone are in the ratio of

5 : 12

and its volume is

2512 {c m}^{3}

. If

π = 3.14

, then find slant height.