IMO- Mathematics Olympiad Class 9: Questions 179 - 183 of 919

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Question number: 179

» Lines, Angles and Quadrilaterals

MCQ▾

Question

If two complementary angles are in the ratio 13: 5, then the angles are________

Choices

Choice (4) Response
a.

15˚, 85˚

b.

65˚, 25˚

c.

13 x˚, 5 x˚

d.

65˚, 35˚

Question number: 180

» Triangles and Circles

MCQ▾

Question

If a right triangle has sides of length 1 and 2 , which of the following could be the length of the remaining side?

  1. 1

  2. 2

  3. 3

Choices

Choice (4) Response
a.

2 Only

b.

1 And 3 Only

c.

1 Only

d.

3 Only

Question number: 181

» Number System

MCQ▾

Question

If 3x+2y=17 and x and y are positive integers, then y could be which of the following?

Choices

Choice (4) Response
a.

3

b.

5

c.

4

d.

2

Question number: 182

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the figure POR , QOR form a linear pair and ab=40˚ . Then a, b respectively are________

Image defines angles that form a linear pair

Image Defines Angles That Form a Linear Pair

Image defines the angles that form a linear pair and find a and b

Choices

Choice (4) Response
a.

70˚, 100˚

b.

80˚, 120˚

c.

110˚, 70˚

d.

120˚, 80˚

Question number: 183

» Surface Area and Volumes

MCQ▾

Question

All the three quadrilaterals ADEC, ABIH and BCGF are squares and abc=90° if the area of ADEC=x2 and area of AHIB=y2(x2>y2) , then find the area of BCGF?

Image define the 3 quadrilaterals ADEC, ABIH & BCGF are squares

Image Define the 3 Quadrilaterals ADEC, ABIH & BCGF Are Squares

Image define the three quadrilaterals ADEC, ABIH and BCGF are squares then find the area of BCGF

Choices

Choice (4) Response
a.

x2+y2

b.

2x2

c.

2y2

d.

x2y2

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