# Lines, Angles and Quadrilaterals (IMO- Mathematics Olympiad Class 9): Questions 49 - 53 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: 49

MCQ▾

### Question

The measurement of a window is , if 12 doors are to be fixed in that window in four rows, measurements of each door should be________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 50

MCQ▾

### Question

If two complementary angles are in the ratio 17: 13, then the angles are________

### Choices

Choice (4) Response

a.

25˚, 65˚

b.

55˚, 35˚

c.

60˚, 30˚

d.

51˚, 39˚

## Question number: 51

MCQ▾

### Question

In the figure line a|| line b|| line c. their transversal line t1 and line t2, cut them at point X, Y, Z and J, K, L respectively. Point Y is the midpoint of segment XZ. If find and

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 52

MCQ▾

### Question

The supplement of an angle is 50 more than six times its complement. Find the measure of the angle

### Choices

Choice (4) Response

a.

65˚

b.

56˚

c.

82˚

d.

38˚

## Question number: 53

MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

Right

b.

Acute

c.

Isosceles

d.

Scalene

f Page