IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 176 - 181 of 931

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Question 176

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Question

MCQ▾

The measure of an angle is four times the measure of its supplementary angle. Then the angles are________

Choices

Choice (4)Response
a.50˚, 200˚
b.36˚, 144˚
c.18˚, 72˚
d.40˚, 160˚

Question 177

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Question

MCQ▾

In the given figure, ABCD is a trapezium in which AB = 7cm, AD = BC = 5 cm, DC = x cm and the distance between AB and CD is 4 cm. Then the value of x is ________

Image defines the ABCD is a trapezium

Image Defines the ABCD is a Trapezium

Loading image

Choices

Choice (4)Response
a.13 cm
b.19 cm
c.Cannot be determined
d.16 cm

Question 178

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Question

MCQ▾

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

Choices

Choice (4)Response
a.65˚, 25˚
b.13 x˚, 5 x˚
c.15˚, 85˚
d.65˚, 35˚

Question 179

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Question

MCQ▾

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

  1. 1

Choices

Choice (4)Response
a.3 Only
b.1 Only
c.1 And 3 Only
d.2 Only

Question 180

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Question

MCQ▾

If and x and y are positive integers, then y could be which of the following?

Choices

Choice (4)Response
a.4
b.5
c.3
d.2

Question 181

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Question

MCQ▾

In the figure, form a linear pair and . Then a, b respectively are________

Image defines angles that form a linear pair

Image Defines Angles That Form a Linear Pair

Loading image

Choices

Choice (4)Response
a.110˚, 70˚
b.120˚, 80˚
c.80˚, 120˚
d.70˚, 100˚