# Mensuration (IMO Level 1- 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 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