IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 139 - 147 of 931

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Question 139

Question

MCQ▾

In the given figure, , and , find

Image Shows the Value of Lines and Angles

Choices

Choice (4)Response

a.

45˚

b.

50˚

c.

60˚

d.

55˚

Question 140

Question

MCQ▾

In the given figure, and . Then ∠ FCD is ________.

Mage Defines AB and CD is Two Parallel Lines

Choices

Choice (4)Response

a.

120˚

b.

60˚

c.

45

d.

90˚

Question 141

Question

MCQ▾

If , and , then x and y respectively are ________

Define AB and CD Parallel Line Find X, Y

Choices

Choice (4)Response

a.

40˚, 30˚

b.

30˚, 45˚

c.

50˚, 77˚

d.

90˚, 30˚

Question 142

Question

MCQ▾

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

Choices

Choice (4)Response

a.

Rhombus

b.

Trapezium

c.

Rectangle

d.

Square

Question 143

Question

MCQ▾

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

Image Shows the Lines

Choices

Choice (4)Response

a.

80˚

b.

85˚

c.

90˚

d.

95˚

Question 144

Question

MCQ▾

Value of

Choices

Choice (4)Response

a.

-1

b.

0

c.

x

d.

1

Question 145

Question

MCQ▾

In the figure , find ________

In the Figure Angle PRQ is Given

Choices

Choice (4)Response

a.

120˚

b.

105˚

c.

100˚

d.

115˚

Question 146

Question

MCQ▾

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

Choices

Choice (4)Response

a.

17

b.

18

c.

16

d.

12

Question 147

Question

MCQ▾

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.

Rationalizing factor

b.

Binomial surd

c.

Conjugate surd

d.

Negative