# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 170 - 174 of 929

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## Question number: 170

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MCQ▾

### Question

In a parallelogram PQRS, , then the measurement of ∠S is ________

### Choices

Choice (4) Response

a.

65˚

b.

100˚

c.

75˚

d.

95˚

## Question number: 171

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MCQ▾

### Question

The angles of quadrilateral are in the ratio . All angles of a quadrilaterals are________

### Choices

Choice (4) Response

a.

30˚, 90˚, 60˚, 20˚

b.

30˚, 60˚, 45˚, 15˚

c.

45˚, 20˚, 30˚, 60˚

d.

36˚, 60˚, 108˚, 156˚

## Question number: 172

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MCQ▾

### Question

ABCD is a trapezium, in which and E & F are points on AD & BC respectively. BD is joined. If , , and , then values of x and y are ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 173

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MCQ▾

### Question

In the adjacent figure, PQRS is a rhombus whose diagonals PR and QS intersect at a point O if side PQ = 20 cm and diagonal QS = 24 cm, the length of diagonal PR is ________ PQRS is a Rhombus Whose Diagonals PQRS is a rhombus whose diagonals PR and QS intersect at a point O and PQ = 20 cm and diagonal QS = 24 cm and find PR

### Choices

Choice (4) Response

a.

30

b.

28

c.

32

d.

34

## Question number: 174

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MCQ▾

### Question

The sides BA and DC of the quadrilateral ABCD are produced as shown in the figure, then________. Image ABCD is a Quadrilateral The sides BA and DC of the quadrilateral ABCD are produced as shown in the image and find the equation

### Choices

Choice (4) Response

a.

b.

c.

d.