Volume and Surface Area Practice Question and Answer
8 Q: The perimeter of a circle is equal to the square perimeter. What will be the ratio of their areas?
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5f76ba624637db732848783f- 14 : 1false
- 211 : 7false
- 314:11true
- 411:14false
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Answer : 3. "14:11"
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:
709 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: What is the area of the largest triangle that can be fitted into a rectangle of length 'l' units and width 'w' units?
709 05ffc31f1b78a0253d6ee6036
5ffc31f1b78a0253d6ee6036- 1$$ {lw\over3}$$false
- 2$$ {2lw\over3}$$false
- 3$$ {3lw\over3}$$false
- 4$$ {lw\over2}$$true
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Answer : 4. "$$ {lw\over2}$$"
Q: The diagonal of a square is 14 cm. What will be the length of the diagonal of the square whose area is double of the area of first square?
702 0609cd2dc4587a93a1dcdd83c
609cd2dc4587a93a1dcdd83c- 1$$ {28\sqrt{2}{\ cm}}$$false
- 2$$ {14\sqrt{2}{\ cm}}$$true
- 328false
- 4$$ {21\sqrt{2}{\ cm}}$$false
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Answer : 2. "$$ {14\sqrt{2}{\ cm}}$$"
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?
702 0600a88d67cf1e8512ed31f0e
600a88d67cf1e8512ed31f0e- 1500.50true
- 2575.60false
- 3521.20false
- 4560.70false
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Answer : 1. "500.50 "
Q: The curved surface area of a cylindrical pillar is 264 m2 and its volume is 924 m3. Find the ratio of its diameter to its height.
697 05ffc32b923210f22f330340a
5ffc32b923210f22f330340a- 13 : 7false
- 27 : 3true
- 36 : 7false
- 47 : 6false
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Answer : 2. "7 : 3"
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:
689 05f1e650526299776aa406ba6
5f1e650526299776aa406ba6- 13080true
- 23160false
- 32920false
- 43240false
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Answer : 1. "3080"
Explanation :
$$ {πr^2+πrl}$$
Q: In a circle, difference between the circumference and radius is 37 cm. Find the area (in cm²) of the circle?
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6019075765f04759038196e1- 1616false
- 2154true
- 3308false
- 477false
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