IMO- Mathematics Olympiad Class 9: Questions 143 - 149 of 919

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Question number: 143

» Lines, Angles and Quadrilaterals

MCQ▾

Question

If the diagonals of a parallelogram are equal, then it is a ________

Choices

Choice (4) Response

a.

Trapezium

b.

Rectangle

c.

Rhombus

d.

Square

Question number: 144

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the given figure AB CD and BC DE , then value of x is________.

 Image shows the lines

Image Shows the Lines

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

Choices

Choice (4) Response

a.

90˚

b.

80˚

c.

85˚

d.

95˚

Question number: 145

» Polynomials

MCQ▾

Question

Value of Xl2Xm2l+m.Xm2Xn2m+n.Xn2Xl2n+l=

Choices

Choice (4) Response

a.

1

b.

-1

c.

x

d.

0

Question number: 146

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the figure XRP+YRQ=80˚ , find PRQ= ________

In the figure angle PRQ is given

In the Figure Angle PRQ Is Given

Showing the figure and find angle PQR

Choices

Choice (4) Response

a.

115˚

b.

120˚

c.

105˚

d.

100˚

Question number: 147

» Lines, Angles and Quadrilaterals

MCQ▾

Question

How many sides does a regular polygon have, each angle of which is of measure 150˚?

Choices

Choice (4) Response

a.

16

b.

18

c.

12

d.

17

Question number: 148

» Number System

MCQ▾

Question

If the product of two surds is a rational number, then each one of them is called the ________ of the other________

Choices

Choice (4) Response

a.

Negative

b.

Rationalizing factor

c.

Conjugate surd

d.

Binomial surd

Question number: 149

» Lines, Angles and Quadrilaterals

MCQ▾

Question

If two complementary angles are in the ratio 4: 11, then the angles are________

Choices

Choice (4) Response

a.

56˚, 34˚

b.

61˚, 29˚

c.

24˚, 66˚

d.

30˚, 60˚

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