IMO- Mathematics Olympiad Class 9: Questions 199 - 203 of 919

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Question number: 199

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the given figure, AB is a mirror, PQ is the incident ray and QR is the reflected ray. If ∠PQR = 136˚, then ∠PQA is ________

Image defines angles ∠PQR

Image Defines Angles ∠PQR

Image defines the angles and find the one angle

Choices

Choice (4) Response

a.

22˚

b.

24˚

c.

26˚

d.

21˚

Question number: 200

» Polynomials

MCQ▾

Question

If x<1 , then which of the following expressions holds?

Choices

Choice (4) Response

a.

x<x2<x3

b.

x<x3<x2

c.

x2<x3<x

d.

x3<x<x2

Question number: 201

» Triangles and Circles

MCQ▾

Question

If one leg of an isosceles right-angles triangle is increased by 6 cm and the other leg is increased by 4 cm, then change in area of the triangle is 24 sq. cm. find the length of the leg of the original triangle.

Choices

Choice (4) Response

a.

512cm

b.

15cm

c.

12cm

d.

112cm

Question number: 202

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the given figure, the value of y is ________

 Image defines the different angles and find the value of y

Image Defines the Different Angles and Find the Value of Y

Image defines the different angles and find the value of y Image defines the different angles and find the value of y

Choices

Choice (4) Response

a.

24

b.

10

c.

22

d.

20

Question number: 203

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the given figure, PQ ST , PQR=110˚ and RST=130˚ , find QRS=

Image shows lines and angles value

Image Shows Lines and Angles Value

Image defines the angles values and find the value of ∠QRS

Choices

Choice (4) Response

a.

50˚

b.

45˚

c.

55˚

d.

60˚

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