Volume and Surface Area Practice Question and Answer
8 Q: Area of a rectangle is equal to the area of a circle whose radius is 14 cm. If the breadth of the rectangle is 22 cm, what is its length?
1767 05fd9c2a5079b5044b465140d
5fd9c2a5079b5044b465140d- 124 cmfalse
- 228 cmtrue
- 326 cmfalse
- 4Cannot be determinedfalse
- 5None of thesefalse
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Answer : 2. "28 cm"
Q: The length, breadth and height of a room is 21 metres, 12 metres and 16 metres. What will be the length of the largest rod that can be placed in that room?
1765 0610c66037588510aa0d4d2f3
610c66037588510aa0d4d2f3- 132 metresfalse
- 225 metresfalse
- 331 metresfalse
- 429 metrestrue
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Answer : 4. "29 metres"
Q: Find the area of triangle whose medians are 8 cm, 15 cm and 17 cm respectively?
1764 060a7a50dc7f1592dd0d64cf3
60a7a50dc7f1592dd0d64cf3- 1$$20 cm^2$$true
- 2$$15 cm^2$$false
- 3$$24 cm^2$$false
- 4$$28 cm^2$$false
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Answer : 1. "$$20 cm^2$$"
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?
1764 05ee9a1f7b1ffa91fd4a38bec
5ee9a1f7b1ffa91fd4a38bec- 153500false
- 249500false
- 351500false
- 452500true
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Answer : 4. "52500"
Q: How much parts of the pits, which are 48 meters long, 16.5 meters wide and 4 meters deep, can be filled in the soil, which is obtained by cylindrical tunnel of 4 meters diameter and 56 meters long?
1763 05f4df6cd82369c1d6113def5
5f4df6cd82369c1d6113def5- 1$$ {1\over 9}$$false
- 2$$ {2\over 9}$$true
- 3$$ {7\over 9}$$false
- 4$$ {8\over 9}$$false
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Answer : 2. "$$ {2\over 9}$$"
Q: The ratio of the areas of two circles is 16: 25. What will be the ratio of their circumferences?
1762 05f76bab1e487e60dced7c88c
5f76bab1e487e60dced7c88c- 14 : 5true
- 23 : 2false
- 34 : 9false
- 49 : 4false
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Answer : 1. "4 : 5 "
Q: The length of a rectangle is 6 cm more than its width and its perimeter is 100 cm. If the area of this rectangle is closest to the area of a circle, then what is the circumference of that circle?
1759 0602e05409f2a38430909bb32
602e05409f2a38430909bb32- 1110 cmfalse
- 2132 cmfalse
- 366 cmfalse
- 488 cmtrue
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Answer : 4. "88 cm"
Q: A regular hexagon has a side of 4 cm. Find its area. (in sq. cm)
1758 0609528c61a490e0a05cde328
609528c61a490e0a05cde328- 1$$ {24\sqrt{3}}$$true
- 2$$ {18\sqrt{3}}$$false
- 3$$ {36\sqrt{3}}$$false
- 4None of thesefalse
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