IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 210 - 216 of 931

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Question 210

Question

MCQ▾

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

Choices

Choice (4)Response

a.

70˚, 110˚

b.

70˚, 120˚

c.

160˚, 70˚

d.

130˚, 50˚

Question 211

Question

MCQ▾

If two supplementary angles are in the ratio 2: 3, then the angles is ________

Choices

Choice (4)Response

a.

140˚, 80˚

b.

185˚, 50˚

c.

72˚, 108˚

d.

160˚, 36˚

Question 212

Question

MCQ▾

The angles A, B, C, D, in the parallelogram ABCD are________

Choices

Choice (4)Response

a.

90˚, 45˚, 30˚, 15˚

b.

90˚, 45˚, 15˚, 20˚

c.

90˚, 90˚, 90˚, 90˚

d.

30˚, 60˚, 20˚, 40˚

Question 213

Question

MCQ▾

In the given figure, and . Then ∠ PSX is________

Choices

Choice (4)Response

a.

90˚

b.

155˚

c.

45˚

d.

60˚

Question 214

Question

MCQ▾

Diagonals of a rectangle ABCD intersect at O. if , then ∠ DCO is ________

Choices

Choice (4)Response

a.

70˚

b.

55˚

c.

35˚

d.

110˚

Question 215

Question

MCQ▾

In the given figure, BO, CO is angle bisectors of external angles of △ABC. Then BOC is ________

Choices

Choice (4)Response

a.

b.

c.

d.

Question 216

Question

MCQ▾

In the figure below, lines XY and MN intersect at O. if and , then are equal to ________

Choices

Choice (4)Response

a.

130˚

b.

90˚

c.

126˚

d.

180˚