Volume and Surface Area Questions Practice Question and Answer
8 Q: The curved surface area of a right circular cylinder of radius 2 cm is 264 cm2. The height of the cylinder, in cm, is
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600552117a0c6e1017db924e- 142false
- 214false
- 310.5false
- 421true
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Answer : 4. "21"
Q: The figure below is an equilateral triangle with sides of length 6. What is the area of the triangle?
1609 05ffc2e4d23210f22f3302d24
5ffc2e4d23210f22f3302d24- 1$$ {9\sqrt{3}:1}$$true
- 216false
- 318false
- 4$$ {12\sqrt{3}:1}$$false
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Answer : 1. "$$ {9\sqrt{3}:1}$$"
Q: If the perimeter of a triangle is 30 cm and the area is 30 square cm, if the length of the larger side is 13 cm, then what is the length of the shorter side?
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5f801aa64e4f797ddbd81c04- 14 cmfalse
- 26 cmfalse
- 35 cmtrue
- 410 cmfalse
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Answer : 3. "5 cm"
Q: If the height of a perpendicular cylinder is 10 cm and its curved surface area is 440 square cm, what is its radius?
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5fa91c2d5ebf3a6442752d8e- 117.5 cmfalse
- 210.5 cmfalse
- 314 cmfalse
- 47 cmtrue
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Answer : 4. "7 cm"
Q: A spherical ball of lead 3 cm in diameter is melted and recast into three spherical balls The diameter of two of these are 1.5 cm and 2 cm respectively. The diameter of the third ball is
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60113124af82aa3010a223e5- 11.4 cmfalse
- 21.8 cmfalse
- 32.1 cmfalse
- 42.5 cmtrue
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Answer : 4. "2.5 cm"
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.
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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: The area covered by a square is 308 square cm. The length of the diagonal of the square is.
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5f9be3d8d433054b5ca011ed- 116 cmfalse
- 228 cmtrue
- 324 cmfalse
- 422 cmfalse
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Answer : 2. "28 cm "
Q: A polygon has 14 sides then find out No. of diagonals in that polygon.
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5e8afd2bbd0d850c66cb13a2- 175false
- 276false
- 377true
- 480false
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