IMO- Mathematics Olympiad Class 9: Questions 114 - 119 of 919

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Question number: 114

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the given figure, XY is a mirror, AB is the incident ray and BC is the reflected ray. If ∠ABC = 116˚, then ∠CBY is ________

Image defines angles find angle CBY

Image Defines Angles Find Angle CBY

Image defines the angles and find the one angle

Choices

Choice (4) Response

a.

32˚

b.

23˚

c.

43˚

d.

21˚

Question number: 115

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the given figure Equation and Equation , then value of x is________.

Image defines the lines BC and DE

Image Defines the Lines BC and DE

Image defines the lines and angle and find the value of x

Choices

Choice (4) Response

a.

140˚

b.

125˚

c.

135˚

d.

105˚

Question number: 116

» Lines, Angles and Quadrilaterals

MCQ▾

Question

How many sides does a regular polygon have, each angle of which is of measure 135˚?

Choices

Choice (4) Response

a.

6

b.

9

c.

8

d.

7

Question number: 117

» Lines, Angles and Quadrilaterals

MCQ▾

Question

Two supplementary angles differ by 94˚. Then the angles are ________

Choices

Choice (4) Response

a.

67˚, 113˚

b.

120˚, 60˚

c.

142˚, 38˚

d.

137˚, 43˚

Question number: 118

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the figure below, lines PQ and JK intersect at O. if Equation and Equation , then Equation are equal to ________

Image defines the lines PQ and JK intersect at O

Image Defines the Lines PQ and JK Intersect at O

Image defines the two lines intersect and find the value of ∠QOK

Choices

Choice (4) Response

a.

90˚

b.

54˚

c.

58˚

d.

56˚

Question number: 119

» Statistics and Probability

MCQ▾

Question

A die is rolled 10, 500 times. The frequency of each outcome is shown in the table. What is the empirical probability of the outcomes of multiples of 3?

Define the die is rolled 10,500 times

Define the Die Is Rolled 10, 500 Times

Define the die is rolled 10, 500 times and find the probability of the outcomes of multiples of 3

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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