# Lines, Angles and Quadrilaterals (IMO- Mathematics Olympiad (SOF) Class 9): Questions 90 - 95 of 126

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## Question number: 90

MCQ▾

### Question

If two supplementary angles are in the ratio 13: 5, then the angles is ________

### Choices

Choice (4) Response

a.

125˚, 55˚

b.

145˚, 35˚

c.

130˚, 50˚

d.

120˚, 60˚

## Question number: 91

MCQ▾

### Question

In the given figure, ∠COD is a right angle. ∠AOC and ∠BOD are in the ratio of 3: 2, thus ∠BOD measures________

### Choices

Choice (4) Response

a.

50˚

b.

40˚

c.

54˚

d.

36˚

## Question number: 92

MCQ▾

### Question

Two supplementary angles differ by 58˚. Then the angles are ________

### Choices

Choice (4) Response

a.

116˚, 64˚

b.

119˚, 61˚

c.

118˚, 62˚

d.

117˚, 63˚

## Question number: 93

MCQ▾

### Question

ABC is an equilateral triangle for side . P, Q and R are midpoints of AB, CA and BC respectively. The area of triangle PQR is (in ) ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 94

MCQ▾

### Question

In the figure, form a linear pair and . Then a, b respectively are________

### Choices

Choice (4) Response

a.

130˚, 50˚

b.

70˚, 120˚

c.

160˚, 70˚

d.

70˚, 110˚

## Question number: 95

MCQ▾

### Question

If two supplementary angles are in the ratio 2: 3, then the angles is ________

### Choices

Choice (4) Response

a.

140˚, 80˚

b.

185˚, 50˚

c.

160˚, 36˚

d.

72˚, 108˚

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