Pearson IIT Foundation Mathematics Class 8>Chapter 14 - Mensuration>PRACTICE QUESTIONS CLASSROOM WING>Q 32

HARD

8th Foundation

IMPORTANT

Earn 100

The outer and inner surface areas of a hemispherical bowl are $1152 π {cm}^{2}$ and $648 π {cm}^{2}$ respectively. What is the total surface area of the bowl?

Important Questions on Mensuration

MEDIUM

8th Foundation

IMPORTANT

Pearson IIT Foundation Mathematics Class 8>Chapter 14 - Mensuration>PRACTICE QUESTIONS CLASSROOM WING>Q 33

The ratio of the volumes of two cubes is

729 : 1331

. What is the ratio of their total surface areas?

MEDIUM

8th Foundation

IMPORTANT

Pearson IIT Foundation Mathematics Class 8>Chapter 14 - Mensuration>PRACTICE QUESTIONS CLASSROOM WING>Q 34

There is a playground measuring

50 m \times 30 m

. In one corner of the ground, a pit of dimensions

= (1152 π + 648 π + 252 π) {cm}^{2} = 2052 π {cm}^{2}

is dug and the mud is spread all over the ground uniformly. What is the approximate height(in

mm

) of the layer of mud spread?

HARD

8th Foundation

IMPORTANT

Pearson IIT Foundation Mathematics Class 8>Chapter 14 - Mensuration>PRACTICE QUESTIONS CLASSROOM WING>Q 35

The radii of the bases as well as the heights of a cone and a cylinder are each equal to

h

and the radius of a hemisphere is also equal to

h

. Find the ratio of the volume of cylinder, hemisphere and cone.

HARD

8th Foundation

IMPORTANT

Pearson IIT Foundation Mathematics Class 8>Chapter 14 - Mensuration>PRACTICE QUESTIONS CLASSROOM WING>Q 36

What is the length (in

cm

)of a cuboid having breadth and height equal to

4 cm

and

6 cm

, respectively and the total surface area of

148 {cm}^{2}

?

MEDIUM

8th Foundation

IMPORTANT

Pearson IIT Foundation Mathematics Class 8>Chapter 14 - Mensuration>PRACTICE QUESTIONS CLASSROOM WING>Q 37

How many cubes having edge of

4

inches each can be cut from a cube having edge of

12

inches?

MEDIUM

8th Foundation

IMPORTANT

Pearson IIT Foundation Mathematics Class 8>Chapter 14 - Mensuration>PRACTICE QUESTIONS CLASSROOM WING>Q 38

Find the area(in

{cm}^{2}

) of a regular hexagon of side

6 cm

?(Use

\sqrt{3} = 1.732

)

EASY

8th Foundation

IMPORTANT

Pearson IIT Foundation Mathematics Class 8>Chapter 14 - Mensuration>PRACTICE QUESTIONS CLASSROOM WING>Q 39

The volume of a sphere of diameter

42 cm

is _____

{cm}^{3}

(Consider,

π = \frac{22}{7}

)

MEDIUM

8th Foundation

IMPORTANT

Pearson IIT Foundation Mathematics Class 8>Chapter 14 - Mensuration>PRACTICE QUESTIONS CLASSROOM WING>Q 40

The edges of a sector of central angle

120 °

and a radius

6 cm

are joined to form a cone. Find the volume of the cone.