# Lines, Angles and Quadrilaterals (IMO- Mathematics Olympiad Class 9): Questions 84 - 88 of 126

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## Question number: 84

MCQ▾

### Question

Two supplementary angles differ by 72˚. Then the angles are ________

### Choices

Choice (4) Response

a.

110˚, 61˚

b.

119˚, 61˚

c.

126˚, 54˚

d.

128˚, 52˚

## Question number: 85

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: 86

MCQ▾

### Question

In the given figure, the value of y is ________

### Choices

Choice (4) Response

a.

24

b.

10

c.

22

d.

20

## Question number: 87

MCQ▾

### Question

In the given figure, , and , find

### Choices

Choice (4) Response

a.

50˚

b.

45˚

c.

55˚

d.

60˚

## Question number: 88

MCQ▾

### Question

Ray OE bisects ∠AOB and OF is the ray opposite OE, then ∠FOB = ________

### Choices

Choice (4) Response

a.

∠BOE

b.

∠FOA

c.

∠AOE

d.

∠FOE

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