# Lines, Angles and Quadrilaterals (IMO- Mathematics Olympiad Class 9): Questions 6 - 10 of 126

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## Question number: 6

MCQ▾

### Question

How many sides does a regular polygon have, each angle of which is of measure 108˚?

### Choices

Choice (4) Response

a.

5

b.

7

c.

8

d.

6

## Question number: 7

MCQ▾

### Question

DEF is an equilateral triangle for side. A, B and C are midpoints of DE, EF and DF respectively. The area of triangle JKL is (in) ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 8

MCQ▾

### Question

In the figure the bisectors of ∠PQR and ∠PRQ intersect each other at O, then ∠QOR is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 9

MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

35˚, 60˚

b.

55˚, 40˚

c.

70˚, 25˚

d.

25˚, 70˚

## Question number: 10

MCQ▾

### Question

The measure of an angle is eight times the measure of its supplementary angle. Then the angles are________

### Choices

Choice (4) Response

a.

65˚, 45˚

b.

63˚, 157˚

c.

140˚, 60˚

d.

20˚, 160˚

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