IMO- Mathematics Olympiad Class 9: Questions 120 - 124 of 919

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Question number: 120

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the given figure, Equation and Equation . Then ∠URS is________

 Image defines the PQ and RS is two lines parallel

Image Defines the PQ and RS Is Two Lines Parallel

Image defines PQ and RS is two lines parallels and find the value of ∠URS

Choices

Choice (4) Response

a.

140˚

b.

160˚

c.

190˚

d.

120˚

Question number: 121

» Lines, Angles and Quadrilaterals

MCQ▾

Question

If l, m, n are three parallel lines and the transversals t1 and t2 cut the lines l, m, n at the points A, B, C and P, Q, R as shown in the figure, then________.

Image shows the three parallel lines

Image Shows the Three Parallel Lines

Image defines the three parallel lines and two transversals t1 and t2 cut the lines

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 122

» Lines, Angles and Quadrilaterals

MCQ▾

Question

The angles of quadrilateral are in the ratio Equation . All angles of a quadrilaterals are________

Choices

Choice (4) Response

a.

72˚, 36˚, 108˚, 144˚

b.

36˚, 60˚, 20˚, 156˚

c.

145˚, 20˚, 30˚, 60˚

d.

108˚, 144˚, 45˚, 15˚

Question number: 123

» 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________

 Image PQ, RS and TU are three lines concurrent at A

Image PQ, RS and TU Are Three Lines Concurrent at A

Image PQ, RS and TU are three lines concurrent at A and find the value of y

Choices

Choice (4) Response

a.

15

b.

25

c.

30

d.

20

Question number: 124

» 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˚

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