IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 119 - 124 of 929

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Question number: 119

» Lines, Angles and Quadrilaterals

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MCQ▾

Question

In the given figure, and . Then ∠URS is________

Image defines the PQ and RS is two lines parallel

Image Defines the PQ and RS is Two Lines Parallel

Choices

Choice (4)Response

a.

140˚

b.

120˚

c.

160˚

d.

190˚

Question number: 120

» Lines, Angles and Quadrilaterals

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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

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 121

» Lines, Angles and Quadrilaterals

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MCQ▾

Question

The angles of quadrilateral are in the ratio . 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: 122

» Lines, Angles and Quadrilaterals

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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

Choices

Choice (4)Response

a.

15

b.

20

c.

25

d.

30

Question number: 123

» Lines, Angles and Quadrilaterals

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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.

55˚, 35˚

d.

60˚, 30˚

Question number: 124

» Lines, Angles and Quadrilaterals

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MCQ▾

Question

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

Choices

Choice (4)Response

a.

Acute

b.

Isosceles

c.

Obtuse

d.

None of the above

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