IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 178 - 184 of 931

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Question 178

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

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

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

Question

MCQ▾

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

Image Defines Angles That Form a Linear Pair

Choices

Choice (4)Response

a.

110˚, 70˚

b.

120˚, 80˚

c.

80˚, 120˚

d.

70˚, 100˚

Question 182

Question

MCQ▾

All the three quadrilaterals ADEC, ABIH and BCGF are squares and if the area of and area of , then find the area of BCGF?

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

Choices

Choice (4)Response

a.

b.

c.

d.

Question 183

Question

MCQ▾

If two supplementary angles are in the ratio 13: 5, then the angles is ________

Choices

Choice (4)Response

a.

120˚, 60˚

b.

125˚, 55˚

c.

130˚, 50˚

d.

145˚, 35˚

Question 184

Question

MCQ▾

Two supplementary angles differ by 34˚. Then the angles are ________

Choices

Choice (4)Response

a.

107˚, 73˚

b.

74˚, 107˚

c.

120˚, 60˚

d.

72˚, 108˚