# IMO- Mathematics Olympiad Class 9: Questions 386 - 389 of 919

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## Question number: 386

MCQ▾

### Question

The base of a prism is a triangle whose sides arc of lengths 13 cm, 20 cm and 21 cm. if the height of the prism be 9 cm. find the area of total lateral surface, volume of the prism

### Choices

Choice (4) Response

a.

1543 c. cm.

b.

1134 c. cm.

c.

1754 c. cm.

d.

1865 c. cm.

## Question number: 387

MCQ▾

### Question

A rectangle is divided into five smaller rectangles, as shown in the figure. Four of them have areas, , and as indicated. Then the area of the shaded rectangle is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 388

MCQ▾

### Question

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.

9 inches

c.

Not obtainable from these data

d.

36 inches

## Question number: 389

MCQ▾

### Question

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.

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