# Lines, Angles and Quadrilaterals (IMO- Mathematics Olympiad (SOF) Class 9): Questions 22 - 27 of 126

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## Question number: 22

MCQ▾

### Question

The complementary angle of an angle is one fourth of itself. Then the angle of its complement are________

### Choices

Choice (4) Response

a.

45˚, 45˚

b.

72˚, 18˚

c.

60˚, 30˚

d.

55˚, 35˚

## Question number: 23

MCQ▾

### Question

The angles of a triangle are in the ratio . The triangle is ________

### Choices

Choice (4) Response

a.

Isosceles

b.

Acute

c.

Obtuse

d.

Question does not provide sufficient data or is vague

## Question number: 24

MCQ▾

### Question

The given figure PQRS is a parallelogram then the values of and are________

### Choices

Choice (4) Response

a.

45˚, 60˚

b.

70˚, 35˚

c.

35˚, 70˚

d.

60˚, 45˚

## Question number: 25

MCQ▾

### Question

In the figure, a is greater than b by one fifth of a right angle. Then a, b respectively are________

### Choices

Choice (4) Response

a.

120˚, 110˚

b.

50˚, 120˚

c.

130˚, 60˚

d.

99˚, 81˚

## Question number: 26

MCQ▾

### Question

In the figure, if , then x = ________

### Choices

Choice (4) Response

a.

60˚

b.

70˚

c.

45˚

d.

55˚

## Question number: 27

MCQ▾

### Question

The value of x in the given figure is ________

### Choices

Choice (4) Response

a.

118˚

b.

120˚

c.

114˚

d.

116˚

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