# Lines, Angles and Quadrilaterals (IMO- Mathematics Olympiad Class 9): Questions 21 - 25 of 126

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 919 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

## Question number: 21

» Lines, Angles and Quadrilaterals

MCQ▾

### Question

In figure PQ, RS and TU are three lines concurrent at A. If ∠PAU = 6y˚, ∠QAS = 4y˚ and ∠RAT = 2y˚, the value of y is________

### Choices

Choice (4) Response

a.

15

b.

25

c.

30

d.

20

## Question number: 22

» Lines, Angles and Quadrilaterals

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

» Lines, Angles and Quadrilaterals

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

» Lines, Angles and Quadrilaterals

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

» Lines, Angles and Quadrilaterals

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˚

f Page