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

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Question number: 6

» Lines, Angles and Quadrilaterals

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

» Lines, Angles and Quadrilaterals

MCQ▾

Question

DEF is an equilateral triangle for side 12cm . A, B and C are midpoints of DE, EF and DF respectively. The area of triangle JKL is (in cm2 ) ________

DEF is an equilateral triangle for side given

DEF Is an Equilateral Triangle for Side Given

Image DEF is an equilateral triangle, find the area of triangle is ABC

Choices

Choice (4) Response
a.

143

b.

153

c.

363

d.

113

Question number: 8

» Lines, Angles and Quadrilaterals

MCQ▾

Question

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

 Image defines the 2 bisectors intersect each other

Image Defines the 2 Bisectors Intersect Each Other

Image defines the ∠PQR and ∠PRQ is 2 bisectors its intersect each other O then find ∠QOR

Choices

Choice (4) Response
a.

90˚14P

b.

180˚+12P

c.

180˚14P

d.

90˚+12P

Question number: 9

» Lines, Angles and Quadrilaterals

MCQ▾

Question

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

 Image is parallelogram ABCD

Image Is Parallelogram ABCD

Image is parallelogram and it’s define the angle values

Choices

Choice (4) Response
a.

35˚, 60˚

b.

55˚, 40˚

c.

70˚, 25˚

d.

25˚, 70˚

Question number: 10

» Lines, Angles and Quadrilaterals

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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