Volume and Surface Area Practice Question and Answer
8 Q: A rectangular ground 16m long and 10m breadth. It has a gravel path 2.5m wide all around it on the outside. What is the area of the path?
1000 05ee9a2a2b1ffa91fd4a38c62
5ee9a2a2b1ffa91fd4a38c62- 1159 m²false
- 2155 m²true
- 3187 m²false
- 4183 m²false
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Answer : 2. "155 m²"
Q: A solid metallic cylinder of base radius 5 cm and height 7 cm is melted to form cones, each of height 1 cm and base radius 1 mm. Find the number of cones?
913 05ee9a1f7b1ffa91fd4a38bec
5ee9a1f7b1ffa91fd4a38bec- 153500false
- 249500false
- 351500false
- 452500true
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Answer : 4. "52500"
Q: Find the area of a white sheet required to prepare a cone with a height of 21cm and the radius of 20cm.
780 05ee9a0a9109b5d6e01625396
5ee9a0a9109b5d6e01625396- 1$$ {3080}cm^2$$true
- 2$$ {2300}cm^2$$false
- 3$$ {3460}cm^2$$false
- 4$$ {3600}cm^2$$false
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Answer : 1. "$$ {3080}cm^2$$"
Q: A circular ground of radius 7 m is surrounded by a path of width 3.5 m. Find the area of path.
1226 05edf1f918c4c964f73d404ea
5edf1f918c4c964f73d404ea- 1202 sq.mfalse
- 2154 sq.mfalse
- 3192.5 sq.mtrue
- 4346.5 sq.mfalse
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Answer : 3. "192.5 sq.m"
Q: The length of the diagonal of a square is 'a' cm. Which of the following represents the area of the square (in sq. cm)?
942 05ed9d7d6f528050f91500c47
5ed9d7d6f528050f91500c47- 12afalse
- 2a\√2false
- 3$$a^2\2$$true
- 4$$a2\4$$false
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Answer : 3. "$$a^2\2$$"
Q: What is the area of a rectangle , if its diagonal s 61 cm and one of its sides is 11 cm ?
841 05ed9d016f528050f914ffaa6
5ed9d016f528050f914ffaa6- 1$$ 660cm^2$$true
- 2$$ 720cm^2$$false
- 3$$ 616cm^2$$false
- 4$$ 633cm^2$$false
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Answer : 1. "$$ 660cm^2$$"
Q: The curved surface area of a cylindrical pillar is 264 square meter and its volume is 924 cubic meters. Find the ratio of its diameter to its height.
2069 05ecf440b9eaf5347ec7914cb
5ecf440b9eaf5347ec7914cb- 17 : 6false
- 23 : 7false
- 37 : 3true
- 46 : 7false
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Answer : 3. "7 : 3"
Q: Two cones have their heights in the ratio 1:3 and the radii of their bases in the ratio 3:1. Find the ratio of their volumes?
815 05ecf3a9b79d67a247e487706
5ecf3a9b79d67a247e487706- 13:1true
- 22:1false
- 34:1false
- 45:1false
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