Volume and Surface Area Practice Question and Answer
8 Q: A field is in the form of an equilateral triangle of side 100 m. A horse is tied to a vertex of the field, with a 15 m long rope. Over what area can the horse graze?
1730 0600e8d0b377d750b4eb46a19
600e8d0b377d750b4eb46a19- 1117.85 m²true
- 2119.85 m²false
- 3117.35 m²false
- 4119.35 m2false
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Answer : 1. "117.85 m² "
Q: The radius of a semicircle is 35 cm, find its area and perimeter.
1703 05fe1bb09ce32c8585c738675
5fe1bb09ce32c8585c738675- 11040 sq.cm and 140 cmfalse
- 21925 sq.cm and 180 cmtrue
- 31890 sq.cm and 90 cmfalse
- 41730 sq.cm and 90 cm/false
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Answer : 2. "1925 sq.cm and 180 cm "
Q: If each edge of a cube is reduced by 25 percent, find the ratio of the volume of the original cube and the resulting cube?
1694 05f892f0de6aa3e1d0bd22e80
5f892f0de6aa3e1d0bd22e80- 18:1false
- 227:64false
- 364:1true
- 464:27false
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Answer : 3. "64:1"
Q: The area of triangle is half the area of square. The perimeter of the square is 224 cm. What is the area of triangle?
1694 05d4aa1bf11160f2052371576
5d4aa1bf11160f2052371576- 11856 cm2false
- 21658 cm2false
- 31558 cm2false
- 41586 cm2false
- 5None of thesetrue
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Answer : 5. "None of these"
Explanation :
given 4a=224,
a=56, so that Area of square is=a2=56*56
so that Area of Triangle is a2/2=1568
Q: A square pyramid with side 10 cm has a volume of 400 cm3. Find the total surface area of the pyramid.
1672 05f2e6ad0b6a1cb7a831cb217
5f2e6ad0b6a1cb7a831cb217- 1240 cm2false
- 2300 cm2false
- 3420 cm2false
- 4360 cm2true
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Answer : 4. "360 cm2"
Q: The ratio of the radii of two wheels is 3: 4, then the ratio of their circumferences will be.
1664 05f97fe6cf6ce7f2367fe6e29
5f97fe6cf6ce7f2367fe6e29- 12 : 3false
- 24 : 3false
- 33 : 4true
- 43 : 5false
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Answer : 3. "3 : 4"
Q: The volume of a sphere and an elliptical cylinder are the same. The radius of the sphere and cylinder are 21 cm and 14 cm respectively. What is the height of the cylinder?
1641 05e3256211f73627362281733
5e3256211f73627362281733- 163 cmtrue
- 256 cmfalse
- 342 cmfalse
- 449 cmfalse
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Answer : 1. "63 cm"
Q: What is the total surface area and curved surface area of a solid semi circle with radius of 14 cm?
1618 05e293aa19d14251e9f42424d
5e293aa19d14251e9f42424d- 1$$ {5544cm^2},1848 cm^2 $$false
- 2$$ {1848cm^2},1232 cm^2 $$true
- 3$$ {924cm^2},616 cm^2 $$false
- 4$$ {2772cm^2},1848 cm^2 $$false
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