Mensuration (IMO- Mathematics Olympiad (SOF) Class 8): Questions 31 - 37 of 61

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Question number: 31

» Mensuration

MCQ▾

Question

Two rectangles ABCD and DBEF are as shown in the figure. The area of rectangle DBEF in square units is________.

Two rectangles ABCD and DBEF with AB = 5 and AD = 12 are given

Two Rectangles ABCD and DBEF With AB = 5 and AD = 12 Are Given

Find out the area of DBEF using given measure (AB = 5 and AD = 12)

Choices

Choice (4) Response

a.

40

b.

90

c.

60

d.

70

Question number: 32

» Mensuration

MCQ▾

Question

A right cylindrical vessel is full with water, how many right cones having half diameter and height as that of right cylinder will be needed to store that water?

Choices

Choice (4) Response

a.

12

b.

25

c.

23

d.

24

Question number: 33

» Mensuration

MCQ▾

Question

The radius of the cylinder whose lateral surface area is 520 and height 5 cm, is________.

Choices

Choice (4) Response

a.

17 cm

b.

14 cm

c.

12 cm

d.

11 cm

Question number: 34

» Mensuration

MCQ▾

Question

Surface area of a cube with edge = 1.2 cm is________.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 35

» Mensuration

MCQ▾

Question

Three solid cubes of sides 1 cm, 6 cm and 8 cm are melted to form a new cube. Find the surface area of the cube so formed.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 36

» Mensuration

MCQ▾

Question

The ratio of areas of two squares, one having triple its diagonals than the other is________.

Choices

Choice (4) Response

a.

5: 3

b.

2: 3

c.

2: 9

d.

9: 1

Question number: 37

» Mensuration

MCQ▾

Question

The ratio of areas of two squares, one having double its diagonals than the other is________.

Choices

Choice (4) Response

a.

9: 1

b.

2: 9

c.

2: 3

d.

4: 1

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