Volume and Surface Area Questions Practice Question and Answer
8 Q: The perimeter of a circle is equal to the square perimeter. What will be the ratio of their areas?
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5f76ba624637db732848783f- 14 : 1false
- 211 : 7false
- 314:11true
- 411:14false
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Answer : 3. "14:11"
Q: If the circumference of a circle is 4.4 m, then the area of the circle (in m2) is :
2690 05f6d8c60ec13dd748003bbcd
5f6d8c60ec13dd748003bbcd- 149/πfalse
- 249πfalse
- 34.9πfalse
- 4None of thesetrue
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Answer : 4. "None of these "
Q: A solid cube, whose diagonal is $$ 128 {\ sqrt {2}} \ cm $$, is molded to form a cuboid. The length and width of the cuboid are 512 cm and 160 cm, respectively. What is the height of the cuboid?
977 05f6d8732f9079a64e3bedd4b
5f6d8732f9079a64e3bedd4b- 116 cmfalse
- 225.6 cmtrue
- 320.8 cmfalse
- 416.4 cmfalse
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Answer : 2. "25.6 cm"
Q: What will be the area (cm2) of the curved surface of an elliptical cylinder whose height and diameter are 10 cm and 8 cm respectively?
807 05f6d79f8f9079a64e3be1fc4
5f6d79f8f9079a64e3be1fc4- 120 πfalse
- 280 πtrue
- 3160 πfalse
- 440 πfalse
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Answer : 2. "80 π"
Q: If a cube whose side is 7.5 cm, what will be its volume?
1447 05f645196a372fb53671224cc
5f645196a372fb53671224cc- 1$$ {421.875\ cm^{3}}$$true
- 2$$ {759.375\ cm^{3}}$$false
- 3$$ {631.810\ cm^{3}}$$false
- 4$$ {210.94\ cm^{3}}$$false
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Answer : 1. "$$ {421.875\ cm^{3}}$$ "
Q: The heights of a cone, cylinder and hemisphere are equal. If their radii are in the ratio 2:3:1, then the ratio of their volumes is:
900 05f59cf9bb772fe2f8b2230a0
5f59cf9bb772fe2f8b2230a0- 12:9:2false
- 24:9:1false
- 34: 27:2true
- 42 : 3: 1false
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Answer : 3. "4: 27:2"
Q: In the figure given below, AD bisects ∠BAC. If the area of ΔABD=40 cm2 and AC=3AB, then the area of ΔABC:
909 05f59ce72b772fe2f8b222a04
5f59ce72b772fe2f8b222a04- 1$$ {150 \ cm^{2}}$$false
- 2$$ {100 \ cm^{2}}$$false
- 3$$ {120 \ cm^{2}}$$true
- 4$$ {160 \ cm^{2}}$$false
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Answer : 3. "$$ {120 \ cm^{2}}$$"
Q: A cuboidal block of 6 cm × 9 cm ×12 cm is cut into exact number of equal cubes. The least possible number of cubes will be:
1014 05f59d0dc69ed13038c147be9
5f59d0dc69ed13038c147be9- 16false
- 29false
- 324true
- 430false
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