Volume and Surface Area Questions Practice Question and Answer
8 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.
1437 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 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?
1424 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: 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:
1420 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: Three solid metallic sphere whose radii are 3cm, x cm and 18cm respectively, are melted and recast into a single solid sphere of diameter 38cm. Then find the total surface area of the sphere with radius x cm?
1416 06066d1b5ffdc341493f35c4d
6066d1b5ffdc341493f35c4d- 1300 πfalse
- 2400 πtrue
- 3100 πfalse
- 4200 πfalse
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Answer : 2. "400 π "
Q: The diameter of a roller is 84 cm and its length is 120 cm. It makes 500 complete revolutions to move once over to level a playground. Find the area of the playground.
1412 06005502ef5c84e7440610c9d
6005502ef5c84e7440610c9d- 11590 sq.cmfalse
- 21594 sq.cmfalse
- 31580 sq.cmfalse
- 41584 sq.cmtrue
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Answer : 4. "1584 sq.cm"
Q: The perimeter of a circle is equal to the square perimeter. What will be the ratio of their areas?
1405 05f76ba624637db732848783f
5f76ba624637db732848783f- 14 : 1false
- 211 : 7false
- 314:11true
- 411:14false
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Answer : 3. "14:11"
Q: The volume of a prism is 288cm3 and height is 24cm. The area of the base of the prism (cm2) is:
1405 05f1e65dca844e17b150c9f05
5f1e65dca844e17b150c9f05- 110false
- 215false
- 312true
- 414false
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Answer : 3. "12"
Q: The radius of a cone is 20 cm and height is 21 cm, the total surface area of the cone is in square cm:
1395 05f1e650526299776aa406ba6
5f1e650526299776aa406ba6- 13080true
- 23160false
- 32920false
- 43240false
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Answer : 1. "3080"
Explanation :
$$ {πr^2+πrl}$$