IMO- Mathematics Olympiad (SOF) Class 9: Questions 205 - 210 of 919

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Question number: 205

» Lines, Angles and Quadrilaterals

MCQ▾

Question

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

Choices

Choice (4) Response

a.

125˚, 55˚

b.

145˚, 35˚

c.

130˚, 50˚

d.

120˚, 60˚

Question number: 206

» Lines, Angles and Quadrilaterals

MCQ▾

Question

In the given figure, ∠COD is a right angle. ∠AOC and ∠BOD are in the ratio of 3: 2, thus ∠BOD measures________

Image defines the different angle, find BOD

Image Defines the Different Angle, Find BOD

Image defines the angles and its ratio

Choices

Choice (4) Response

a.

50˚

b.

40˚

c.

54˚

d.

36˚

Question number: 207

» Lines, Angles and Quadrilaterals

MCQ▾

Question

Two supplementary angles differ by 58˚. Then the angles are ________

Choices

Choice (4) Response

a.

116˚, 64˚

b.

119˚, 61˚

c.

118˚, 62˚

d.

117˚, 63˚

Question number: 208

» Lines, Angles and Quadrilaterals

MCQ▾

Question

ABC is an equilateral triangle for side . P, Q and R are midpoints of AB, CA and BC respectively. The area of triangle PQR is (in ) ________

ABC is an equilateral triangle for side given

ABC is an Equilateral Triangle for Side Given

Image ABC is an equilateral triangle, find the area of triangle is PQR

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 209

» Polynomials

MCQ▾

Question

Remainder when is divided by is________

Choices

Choice (4) Response

a.

b.

c.

d.

0

Question number: 210

» Lines, Angles and Quadrilaterals

MCQ▾

Question

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

Image defines lines POQ and find a and b

Image Defines Lines POQ and Find a and B

Image defines angle POR and QOR and form a linear pair

Choices

Choice (4) Response

a.

130˚, 50˚

b.

70˚, 120˚

c.

160˚, 70˚

d.

70˚, 110˚

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