Volume and Surface Area Questions Practice Question and Answer
8 Q: The total Surface area of a solid hemisphere is 1039.5 cm2. The volume ( in cm3) of the hemisphere is: (Take π=22/7)
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5fbf7f7d4f2f6c622be7e233- 12425.5true
- 22530.6false
- 32525.6false
- 42225.5false
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Answer : 1. "2425.5"
Q: In the figure given below, AD bisects ∠BAC. If the area of ΔABD=40 cm2 and AC=3AB, then the area of ΔABC:
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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: From a right cone of height h and with base radius r a cone has been cut of from the centre of the height. The volume of remaining frustum of the cone is.
611 05f8016fb0a69ab3becc7d418
5f8016fb0a69ab3becc7d418- 1$$ {1\over3}π{r^{2}}h$$false
- 2$$ {1\over24}π{r^{2}}h$$false
- 3$$ {7\over24}π{r^{2}}h$$true
- 4$$ {1\over8}π{r^{2}}h$$false
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Answer : 3. "$$ {7\over24}π{r^{2}}h$$"
Q: A regular hexagon has a side of 4 cm. Find its area. (in sq. cm)
608 0609528c61a490e0a05cde328
609528c61a490e0a05cde328- 1$$ {24\sqrt{3}}$$true
- 2$$ {18\sqrt{3}}$$false
- 3$$ {36\sqrt{3}}$$false
- 4None of thesefalse
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Answer : 1. "$$ {24\sqrt{3}}$$"
Q: A circular park whose diameter is 210 m has a 5 m wide path running around it(on the outside). What is the area ( in m2) of the path?
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5fbe70c9aa47db563875b7ae- 11020 πfalse
- 21075 πtrue
- 31050 πfalse
- 41100 πfalse
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Answer : 2. "1075 π"
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.
605 05fe1ba524c864b4aa0de327f
5fe1ba524c864b4aa0de327f- 155 sq.cmtrue
- 240 sq.cmfalse
- 345 sq.cmfalse
- 490 sq.cmfalse
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Answer : 1. "55 sq.cm"
Q: If a side of a square is a, then what will be the area of the square on its diagonal?
604 05fa91dbc4e71ba46b02a721f
5fa91dbc4e71ba46b02a721f- 1$$ {\sqrt{2}a^{2}}$$false
- 2$$ {{2}a^{2}}$$true
- 3$$ {{5}a^{2}}$$false
- 4$$ {a^{2}}$$false
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Answer : 2. "$$ {{2}a^{2}}$$"
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?
601 05ecf3a9b79d67a247e487706
5ecf3a9b79d67a247e487706- 13:1true
- 22:1false
- 34:1false
- 45:1false
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