Volume and Surface Area Practice Question and Answer
8 Q: What is the total CSA of cone whose radius is 3 cm and height is 4 cm?
1638 05e9d2b8b772f97276f50ca91
5e9d2b8b772f97276f50ca91- 1$$ { 24 π cm^2}$$true
- 2$$ { 25 π cm^2}$$false
- 3$$ { 28 π cm^2}$$false
- 4$$ { 20 π cm^2}$$false
- 5None of thesefalse
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Answer : 1. "$$ { 24 π cm^2}$$"
Q: A polygon has 9 sides, what is its interior angle?
1636 05feee6ea1f464d740159f217
5feee6ea1f464d740159f217- 1140 degreetrue
- 2100 degreefalse
- 3120 degreefalse
- 440 degreefalse
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Answer : 1. "140 degree"
Q: Two cones have their heights in the ratio 1:3 and the radii of their bases in the ratio 3:1. Find the ratio of their volumes?
1635 05ecf3a9b79d67a247e487706
5ecf3a9b79d67a247e487706- 13:1true
- 22:1false
- 34:1false
- 45:1false
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Answer : 1. "3:1"
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
1627 0600552117a0c6e1017db924e
600552117a0c6e1017db924e- 142false
- 214false
- 310.5false
- 421true
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Answer : 4. "21"
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?
1625 05f801aa64e4f797ddbd81c04
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: The figure below is an equilateral triangle with sides of length 6. What is the area of the triangle?
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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: 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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