# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 185 - 190 of 931

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## Question 185

### Question

MCQ▾

In a parallelogram ABCD, , then the measurement of ∠ A is ________

### Choices

Choice (4)Response

a.

120˚

b.

90˚

c.

75˚

d.

65˚

## Question 186

### Question

MCQ▾

The given figure, ABCD is a trapezium in which ∠ A = (x + 25) ˚, ∠ B = y˚ , ∠ C = 95˚ and ∠ D = (2x + 5) ˚ then the value of x and y are________

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 187

### Question

MCQ▾

In the given figure, PQRS is a trapezium in which PQ = 19 cm, PR = QS = 20 cm, ₹ = x cm and the distance between PQ and ₹ is 12 cm. Then the value of x is ________

### Choices

Choice (4)Response

a.

43 cm

b.

58 cm

c.

52 cm

d.

51 cm

## Question 188

### Question

MCQ▾

In and , , are extended to X and Y respectively and . Under which congruency criterion, the triangles are congruent?

### Choices

Choice (4)Response

a.

SAA

b.

SAS

c.

SSS

d.

SSA

## Question 189

### Question

MCQ▾

The angle between bisectors of the angles of a linear pair is ________

### Choices

Choice (4)Response

a.

90˚

b.

30˚

c.

45˚

d.

180˚

## Question 190

### Question

MCQ▾

Three parallel lines are cut by two transversals as shown in the given figure. If , and , then the length of QR is ________

### Choices

Choice (4)Response

a.

12 cm

b.

14 cm

c.

16 cm

d.

10 cm