# IMO- Mathematics Olympiad Class 9: Questions 247 - 251 of 919

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## Question number: 247

MCQ▾

### Question

On plotting the points A (3, 3), B (9, 3), C (12, 10), D (5, 10) and joining AB, BC, CD, DA Which of the following figure is obtained?

### Choices

Choice (4) Response

a.

Hexagon

b.

Cross

c.

Triangle

d.

Parallelogram

## Question number: 248

MCQ▾

### Question

The and are right angles. If, and, then the length of QR and QS respectively is ________

### Choices

Choice (4) Response

a.

15 cm, 12 cm

b.

16 cm, 15 cm

c.

25 cm, 12 cm

d.

15 cm, 16 cm

## Question number: 249

MCQ▾

### Question

If the altitude of an equilateral triangle is , its area is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 250

MCQ▾

### Question

The Point identified in figure by the Coordinates (-6, 4) is ________

### Choices

Choice (4) Response

a.

Y

b.

Z

c.

W

d.

X

## Question number: 251

MCQ▾

### Question

A triangle and a trapezoid are equal in area. They also have the same altitudes. If the base of the triangle is 18 inches, the mean of the parallel sides of the trapezoid is ________

### Choices

Choice (4) Response

a.

36 inches

b.

Not obtained from this data

c.

18 inches

d.

9 inches

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