# IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 904 - 910 of 968

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## Question number: 904

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MCQ▾

### Question

A circle of radius ‘r’ has been inscribed in a triangle of area A. If the semi-perimeter of the triangle be S, then ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 905

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MCQ▾

### Question

IF then the value of is ________.

### Choices

Choice (4)Response

a.

213.0003

b.

53.603

c.

153.6003

d.

53.6003

## Question number: 906

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MCQ▾

### Question

In the given figure, BD is the diameter of the circle with centre O, . Then y equals________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 907

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MCQ▾

### Question

A sports club has 130 meters. An increase of in the number of men and in the number of women brrough up the membership to How many men and women were there originally?

### Choices

Choice (4)Response

a.

60 men, 70 women

b.

50 men, 80 women

c.

90 men, 40 women

d.

80 men, 50 women

## Question number: 908

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MCQ▾

### Question

How many sides does a regular polygon have, whose interior angle is eight times its exterior angle?

### Choices

Choice (4)Response

a.

16

b.

24

c.

18

d.

20

## Question number: 909

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MCQ▾

### Question

Which number is on the face opposite 3?

### Choices

Choice (4)Response

a.

5

b.

4

c.

6

d.

3

## Question number: 910

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MCQ▾

### Question

How many triangles (excluding right angle triangles) are there in the given figure.

### Choices

Choice (4)Response

a.

35

b.

34

c.

32

d.

33

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