# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 211 - 217 of 929

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## Question number: 211

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MCQ▾

### Question

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 number: 212

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MCQ▾

### Question

The angles A, B, C, D, in the parallelogram ABCD are________ Image ABCD is ParallelogramImage ABCD is parallelogram and the different angles

### 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 number: 213

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MCQ▾

### Question

In the given figure, and . Then ∠PSX is________ Image Defines the WX and YZ is Two Lines ParallelImage defines WX and YZ is two lines parallels and find the value of ∠PSX

### Choices

Choice (4)Response

a.

90˚

b.

155˚

c.

45˚

d.

60˚

## Question number: 214

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MCQ▾

### Question

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 number: 215

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MCQ▾

### Question

In the given figure, BO, CO is angle bisectors of external angles of △ABC. Then BOC is ________ Image Defines the AngleImage defines the angles and find the angle values

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 216

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MCQ▾

### Question

In the figure below, lines XY and MN intersect at O. if and , then are equal to ________ Image Defines Lines XY and MN Intersect at OImage defines the two lines intersect and find the value of ∠XON

### Choices

Choice (4)Response

a.

130˚

b.

90˚

c.

126˚

d.

180˚

## Question number: 217

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MCQ▾

### Question

Triangle PAB is formed by three tangents to circle with center O and, then angle ACB equals ________ Triangle PAB is Formed by 3 Tangents to Circle with Center OGiven the Triangle PAB is formed by three tangents to circle with center O and angle APB is 80 then find the angle AOC equals value

### Choices

Choice (4)Response

a.

b.

c.

d.

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