Volume and Surface Area Practice Question and Answer
8 Q: If the height and the radius of the base of a cone are both doubled, the volume of the cone becomes _______ of its previous volume.
1345 0642821ab72ca731a99107e82
642821ab72ca731a99107e82- 14 timesfalse
- 28 timestrue
- 33 timesfalse
- 46 timesfalse
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Answer : 2. "8 times"
Q: The vertices of the 1 cm side are cut from each corner of a square with a side of 4.5 cm. Find the circumference and area of the octagon formed?
1344 05f87f977e6aa3e1d0bcbcc73
5f87f977e6aa3e1d0bcbcc73- 1$$ {5\sqrt{2}}{\ cm};{18.25{\ cm^{2}}}$$false
- 2$$ {(5+4\sqrt{2})}{\ cm}; {18.25 \ cm^{2}}$$false
- 3$$ {(10+4\sqrt{2})}{\ cm}; {18.25 \ cm^{2}}$$true
- 416 cm and 16 sq.cmfalse
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Answer : 3. "$$ {(10+4\sqrt{2})}{\ cm}; {18.25 \ cm^{2}}$$"
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.
1341 05fe1ba524c864b4aa0de327f
5fe1ba524c864b4aa0de327f- 155 sq.cmtrue
- 240 sq.cmfalse
- 345 sq.cmfalse
- 490 sq.cmfalse
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Answer : 1. "55 sq.cm"
Q: There is a circular garden of radius 21 metres. A path of width 3.5 metres is constructed just outside the garden. What is the area (in metres) of the path?
1338 0600a88d67cf1e8512ed31f0e
600a88d67cf1e8512ed31f0e- 1500.50true
- 2575.60false
- 3521.20false
- 4560.70false
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Answer : 1. "500.50 "
Q: A square and an equilateral triangle are of the same perimeter. If the diagonal of the square is $$ {12\sqrt{2}}$$ cm long, then the area of the triangle is.
1335 05f76e9c74637db73284ad4d5
5f76e9c74637db73284ad4d5- 1$$ {32\sqrt{3}}$$false
- 2$$ {64\sqrt{3}}$$true
- 3$$ {64\sqrt{2}}$$false
- 4$$ {48\sqrt{3}}$$false
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Answer : 2. "$$ {64\sqrt{3}}$$"
Q: A straight line parallel to the base QR of the ∆PQR intersect PQ and PR at the points S and T respectively. If the area of the ∆PQT be 36 cm2 then area of the ∆PRS is:
1333 060952c6b1a490e0a05cdf807
60952c6b1a490e0a05cdf807- 1$$ {18 {\ cm^{2}}}$$false
- 2$$ {36 {\ cm^{2}}}$$true
- 3$$ {28 {\ cm^{2}}}$$false
- 4$$ {48 {\ cm^{2}}}$$false
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Answer : 2. "$$ {36 {\ cm^{2}}}$$"
Q: The ratio between the volume (cm3) of a cylinder and the curved surface area (cm2) is numerically 14: 1. If the height of the cylinder is 50 cm, what is the volume of the cylinder (cm3) ?
1327 05f9a9e2035c9ba56e4d236d9
5f9a9e2035c9ba56e4d236d9- 161600false
- 292400false
- 3123200true
- 4184800false
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Answer : 3. "123200"
Q: The volume of a prism is 288cm3 and height is 24cm. The area of the base of the prism (cm2) is:
1320 05f1e65dca844e17b150c9f05
5f1e65dca844e17b150c9f05- 110false
- 215false
- 312true
- 414false
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