Volume and Surface Area Questions Practice Question and Answer
8 Q: If the perimeter of a circular plot is equal to the perimeter of a square plot, what will be the ratio of their areas?
868 05f97f1d5d433054b5c8a7d4a
5f97f1d5d433054b5c8a7d4a- 112:11false
- 214:11true
- 36:11false
- 47:11false
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Answer : 2. "14:11"
Q: What is total surface area of a cone where, r’ is radius and ‘l’ is slant height?
860 05eccef537bb74b48ff93a881
5eccef537bb74b48ff93a881- 1πr (l + r)true
- 22πr (l+r)false
- 3πrlfalse
- 4$$ 2πrl^2$$false
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Answer : 1. "πr (l + r) "
Q: In the given figure if each of the outer circles have radii ‘R’, then the radius of the inner circle will be:
858 060b70e3f2f692872ec8cf7cc
60b70e3f2f692872ec8cf7cc- 1$$ {2\over ({\sqrt{2}+1})R}$$false
- 2$$ {1\over {\sqrt{2}}}R$$false
- 3$$ {(\sqrt{2}-1)R}$$true
- 4$$ {\sqrt{2}R}$$false
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Answer : 3. "$$ {(\sqrt{2}-1)R}$$"
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 -
857 060b6e1d32f692872ec8c9f7b
60b6e1d32f692872ec8c9f7b- 112540false
- 213500true
- 324400false
- 411600false
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Answer : 2. "13500"
Q: Find the area of triangle whose medians are 8 cm, 15 cm and 17 cm respectively?
855 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: Find the area of a quadrilateral whose diagonal is 10 cm. And the length of the length put on it is 6 cm and 5 cm respectively.
854 05fe1ba524c864b4aa0de327f
5fe1ba524c864b4aa0de327f- 155 sq.cmtrue
- 240 sq.cmfalse
- 345 sq.cmfalse
- 490 sq.cmfalse
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Answer : 1. "55 sq.cm"
Q: The ratio of the volume of right circular cylinder and a right circular cone of the same base and height will be:
853 05efeb1ddeb90be58c5960aa0
5efeb1ddeb90be58c5960aa0- 11:3false
- 22:3false
- 33:2false
- 43:1true
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Answer : 4. "3:1"
Q: If the length of the diagonal of a square is $${ 10\sqrt{2}}$$ cm, then what will be the area of the square?
851 0610c00e7997056628330e202
610c00e7997056628330e202- 1200 cm2false
- 2100 cm2true
- 3$${ 100\sqrt{2}}$$false
- 450 cm2false
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