Lines, Angles and Quadrilaterals (IMO- Mathematics Olympiad Class 9): Questions 21 - 25 of 126

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Question number: 21

» 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: 22

» 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˚

Question number: 23

» Lines, Angles and Quadrilaterals

MCQ▾

Question

The angles of a triangle are in the ratio 3:2:7 . The triangle is ________

Choices

Choice (4) Response

a.

Isosceles

b.

Acute

c.

Obtuse

d.

Question does not provide sufficient data or is vague

Question number: 24

» Lines, Angles and Quadrilaterals

MCQ▾

Question

The given figure PQRS is a parallelogram then the values of SQP and QSP are________

Image is parallelogram

Image Is Parallelogram

Image is parallelogram and it’s define the angle values

Choices

Choice (4) Response

a.

45˚, 60˚

b.

70˚, 35˚

c.

35˚, 70˚

d.

60˚, 45˚

Question number: 25

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the figure, a is greater than b by one fifth of a right angle. Then a, b respectively are________

Image define a is greater than b by one fifth of a right angle

Image Define a Is Greater Than B by One Fifth of a Right Angle

Image define sthe right angle and find the value of a and b

Choices

Choice (4) Response

a.

120˚, 110˚

b.

50˚, 120˚

c.

130˚, 60˚

d.

99˚, 81˚

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