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

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Question number: 386

» Surface Area and Volumes

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

» Surface Area and Volumes

MCQ▾

Question

A rectangle is divided into five smaller rectangles, as shown in the figure. Four of them have areas 8units2 , 10units2 , 45units2 and 14units2 as indicated. Then the area of the shaded rectangle is ________

Given rectangle is divided into five smaller rectangles

Given Rectangle Is Divided Into Five Smaller Rectangles

Given rectangle is divided into five smaller rectangles. Three of them have areas 8 units, 10 units, 45 units and 14 units as indicated and find the area of the shaded rectangle

Choices

Choice (4) Response

a.

7.1units2

b.

4.8units2

c.

5.8units2

d.

3.1units2

Question number: 388

» Lines, Angles and Quadrilaterals

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

» Surface Area and Volumes

MCQ▾

Question

Two cubes each of volume 125cm3 are joining end to end. Find the surface area of the resulting cuboid.

Choices

Choice (4) Response

a.

246cm2

b.

152cm2

c.

250cm2

d.

180cm2

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