# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 386 - 392 of 931

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## Question 386

### Question

MCQ▾

A triangle and a trapezoid are equal in area. They also have the same altitude. If the base of the triangle is 18 inches, the median of the trapezoid is ________

### Choices

Choice (4)Response

a.

18 inches

b.

Not obtainable from these data

c.

36 inches

d.

9 inches

## Question 387

### Question

MCQ▾

Two cubes each of volume are joining end to end. Find the surface area of the resulting cuboid.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 388

### Question

MCQ▾

Two cylinders of same volume have their heights in the ratio 1: 3. Find the ratio of their radii?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 389

### Question

MCQ▾

If the point (3,4) lies on the graph of the equation , find the value of a.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 390

### Question

MCQ▾

In the figure , and . If the exterior angle CAX is , then the angle KHC is ________

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 391

### Question

MCQ▾

In , and the bisector of meets BC at P. then the ascending order of sides is ________

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 392

### Question

MCQ▾

The area of a quadrilateral, one of whose diagonals is 30 cm long and the perpendiculars from the other two vertices are 19 cm and 11 cm respectively is ________

### Choices

Choice (4)Response

a.

b.

c.

d.