IMO- Mathematics Olympiad Class 9: Questions 170 - 173 of 919

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Question number: 170

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In figure, lines a and b intersect at O. if x=45˚ , the value of y, z and u respectively is ________

 Image defines the Lines a and b intersect at O

Image Defines the Lines a and B Intersect at O

Image defines the Lines a and b intersect at O and find the value of y, z and u

Choices

Choice (4) Response

a.

133˚,47˚,133˚

b.

140˚,40˚,140˚

c.

135˚,45˚,135˚

d.

138˚,43˚,138˚

Question number: 171

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In a parallelogram PQRS, P=85˚ , then the measurement of ∠S is ________

Choices

Choice (4) Response

a.

75˚

b.

95˚

c.

100˚

d.

65˚

Question number: 172

» Lines, Angles and Quadrilaterals

MCQ▾

Question

The angles of quadrilateral are in the ratio 3:5:9:13 . All angles of a quadrilaterals are________

Choices

Choice (4) Response

a.

30˚, 90˚, 60˚, 20˚

b.

30˚, 60˚, 45˚, 15˚

c.

36˚, 60˚, 108˚, 156˚

d.

45˚, 20˚, 30˚, 60˚

Question number: 173

» Triangles and Circles

MCQ▾

Question

ABCD is a trapezium, in which ABDC,ADAB and E & F are points on AD & BC respectively. BD is joined. If EFC=110° , ABD=60° , BDC=x° and DCF=y° , then values of x and y are ________

Choices

Choice (4) Response

a.

30°,100°

b.

50°,80°

c.

60°,70°

d.

90°,40°

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