Mensuration (IMO- Mathematics Olympiad Class 8): Questions 29 - 34 of 61
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Question number: 29
» Mensuration
Question
The radius of a cylinder is doubled but its lateral surface area is unchanged. Then its height must be________.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Constant |
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| b. | Halved |
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| c. | Doubled |
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| d. | Tripled |
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Question number: 30
» Mensuration
Question
Between a square of perimeter 36 cm and a circle of circumference 36 cm, which figure has larger area and by how much?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Circle, 22 |
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| b. | Square, 22 |
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| c. | Circle, 26 |
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| d. | None of the above |
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Question number: 31
» Mensuration
Question
Two rectangles ABCD and DBEF are as shown in the figure. The area of rectangle DBEF in square units is________.
Two Rectangles ABCD and DBEF With AB = 5 and AD = 12 Are Given
Find out the area of DBEF using given measure (AB = 5 and AD = 12)
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 40 |
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| b. | 90 |
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| c. | 60 |
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| d. | 70 |
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Question number: 32
» Mensuration
Question
A right cylindrical vessel is full with water, how many right cones having half diameter and height as that of right cylinder will be needed to store that water?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 12 |
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| b. | 25 |
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| c. | 23 |
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| d. | 24 |
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Question number: 33
» Mensuration
Question
The radius of the cylinder whose lateral surface area is 520 and height 5 cm, is________.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 17 cm |
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| b. | 14 cm |
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| c. | 12 cm |
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| d. | 11 cm |
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Question number: 34
» Mensuration
Question
Surface area of a cube with edge = 1.2 cm is________.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. |
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| b. |
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| c. |
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| d. |
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