# IMO- Mathematics Olympiad Class 9: Questions 198 - 202 of 919

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## Question number: 198

MCQ▾

### Question

In the given figure, three equilateral triangles have a common vertex then

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 199

MCQ▾

### Question

In the given figure, AB is a mirror, PQ is the incident ray and QR is the reflected ray. If ∠PQR = 136˚, then ∠PQA is ________

### Choices

Choice (4) Response

a.

22˚

b.

24˚

c.

26˚

d.

21˚

## Question number: 200

MCQ▾

### Question

If , then which of the following expressions holds?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 201

MCQ▾

### Question

If one leg of an isosceles right-angles triangle is increased by 6 cm and the other leg is increased by 4 cm, then change in area of the triangle is 24 sq. cm. find the length of the leg of the original triangle.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 202

MCQ▾

### Question

In the given figure, the value of y is ________

### Choices

Choice (4) Response

a.

24

b.

10

c.

22

d.

20

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