IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 126 - 130 of 931

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Question 126

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Question

MCQ▾

In the figure, a is greater than b by one fifth of a right angle. Then a, b respectively are________

Image define a is greater than b by one fifth of a right angle

Image Define a is Greater Than B by One Fifth of a Right Angle

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Choices

Choice (4)Response
a.99˚, 81˚
b.50˚, 120˚
c.130˚, 60˚
d.120˚, 110˚

Question 127

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Question

MCQ▾

In the figure, if , then x = ________

Image defines the AB and CD is parallel lines

Image Defines the AB and CD is Parallel Lines

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Choices

Choice (4)Response
a.70˚
b.55˚
c.45˚
d.60˚

Question 128

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Question

MCQ▾

In the adjoining figure, circles with centres at L, M and N each have a radius of 2 units and are placed as shown here. If PQRS is the smallest rectangle that will enclose the 3 circles, what is the area of PQRS?

image define in the adjoining figure,circles with centresL,M,N

Image Define in the Adjoining Figure, Circles with centresL, M, N

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Choices

Choice (4)Response
a.12 sq. units
b.16 sq. units
c.8 sq. units
d.32 sq. units

Question 129

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Question

MCQ▾

The value of x in the given figure is ________

Figure define the angles

Figure Define the Angles

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Choices

Choice (4)Response
a.116˚
b.118˚
c.114˚
d.120˚

Question 130

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Question

MCQ▾

In the given figure, then value of x is________.

Image defines the different lines

Image Defines the Different Lines

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Choices

Choice (4)Response
a.110˚
b.112˚
c.105˚
d.115˚