Volume and Surface Area Practice Question and Answer
8 Q: What is the area of a rectangle , if its diagonal s 61 cm and one of its sides is 11 cm ?
1512 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: If the curved surface area of a right circular cone is 10010 sq cm and its slant height is 91 cm, find its total surface area.
1511 05feee2ae1f464d740159ed76
5feee2ae1f464d740159ed76- 127720 sq cmfalse
- 24620 sq cmfalse
- 36930 sq cmfalse
- 413860 sq cmtrue
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Answer : 4. "13860 sq cm"
Q: The bisector of ∠B in ΔABC meets AC at D. If AB=10 cm and BC=11 cm and AC=14 cm, then the length of AD is:
1509 05f40dec554900c5349e9eb8f
5f40dec554900c5349e9eb8f- 1$$ {20\over3}$$true
- 222false
- 3$$ {22\over3}$$false
- 420false
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Answer : 1. "$$ {20\over3}$$"
Q: A solid metallic cylinder of base radius 3 cm. and height 5 cm. is melted to form cones, each of height 1 cm. and base radius 1 mm. The number of cones is -
1506 060b6e1d32f692872ec8c9f7b
60b6e1d32f692872ec8c9f7b- 112540false
- 213500true
- 324400false
- 411600false
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Answer : 2. "13500"
Q: The total surface area of a hemisphere is 166.32 sq cm, find its radius?
1505 05f0e762d1090a058653e57e0
5f0e762d1090a058653e57e0- 14.2 cmtrue
- 28.4 cmfalse
- 31.4 cmfalse
- 42.1 cmfalse
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Answer : 1. "4.2 cm"
Q: The base of right prism is a trapezium whose parallel sides are 11 cm and 15 cm and the distance between them is 9 cm. If the volume of the prism is 1731.6 cm3, then the height (in cm) of the prism will be:
1505 06007f1151187ab386914c33b
6007f1151187ab386914c33b- 115.2false
- 214.8true
- 315.6false
- 414.2false
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Answer : 2. "14.8"
Q: A hollow copper pipe is 22 cm long and its external diameter is 28 cm. If the thickness of the pipe is 3 cm and iron weighs 8.5 g/cm3 , then the weight of the pipe is closest to:
1501 060bf5d44c40f0c12f4b8e7c1
60bf5d44c40f0c12f4b8e7c1- 134 kgfalse
- 244 kgtrue
- 314 kgfalse
- 424 kgfalse
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Answer : 2. "44 kg"
Q: The volume of a solid right circular cone is 600 π cm3, and the diameter of its base is 30 cm. The total surface area (in cm2) of the cone is:
1499 05fc0dcbe96415e6951a97db2
5fc0dcbe96415e6951a97db2- 1480 πtrue
- 2255 πfalse
- 3472 πfalse
- 4496 πfalse
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