Volume and Surface Area Questions Practice Question and Answer
8 Q: If the height and the radius of the base of a cone are both doubled, the volume of the cone becomes _______ of its previous volume.
596 0642821ab72ca731a99107e82
642821ab72ca731a99107e82- 14 timesfalse
- 28 timestrue
- 33 timesfalse
- 46 timesfalse
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Answer : 2. "8 times"
Q: The diameter of a circle is equal to the perimeter of a square whose area is 3136 sq cm. What is the circumference of the circle?
633 063d0db186071cf76fc19e94e
63d0db186071cf76fc19e94e- 1352 cmfalse
- 2704 cmtrue
- 3394 cmfalse
- 4None of thesefalse
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Answer : 2. "704 cm"
Q: The curved surface area of cylindrical pillar is $$ {264 m^{2}}$$ and its volume is $$ {924 m^{3}}$$. Find the ratio of its diameter to its height.
630 063d0da736071cf76fc19e78a
63d0da736071cf76fc19e78a- 13 : 7false
- 27 : 3true
- 36 : 7false
- 47 : 6false
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Answer : 2. "7 : 3"
Q: If the length of the diagonal of a square is $${ 10\sqrt{2}}$$ cm, then what will be the area of the square?
879 0610c00e7997056628330e202
610c00e7997056628330e202- 1200 cm2false
- 2100 cm2true
- 3$${ 100\sqrt{2}}$$false
- 450 cm2false
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Answer : 2. "100 cm2"
Q:Directions: Bar graph given below shows pens sold by a retailor on five different days. Study the data carefully and answer the following questions.
Sum of volume of cylinder (S) and volume off cone (C) is 2190𝝅 cm² & height of both cylinder and cone is same i.e, 10 cm. If radius of cone is 15 cm then find the ratio of radius of S to radius of C?
815 0619f56c802f30f77f96539bd
619f56c802f30f77f96539bd- 11 : 2false
- 23 : 4false
- 32 : 5false
- 44 : 5true
- 53 : 5false
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Answer : 4. "4 : 5"
Q: If a chord of length 30 cm is at a distance of 8 cm from the center of the circle, then the length of the chord of the same circle which is at a distance of 15 cm from the center is equal to
930 06116255a7c2f633654de53ce
6116255a7c2f633654de53ce- 112 cmfalse
- 218 cm.false
- 316 cmtrue
- 420 cm.false
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Answer : 3. "16 cm"
Q: The ratio of the areas of two isosceles triangles having the same vertical angle is 1 : 9.The ratio of their heights is -
935 0611625197c2f633654de52c1
611625197c2f633654de52c1- 11 : 3true
- 21 : 9false
- 33 : 1false
- 41 : 81false
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Answer : 1. "1 : 3"
Q: Area of a circle inscribed in a square is 308 cm2.The length of the diagonal of the square is
1011 06116240d56340c20700ac888
6116240d56340c20700ac888- 116 cmfalse
- 228 cmtrue
- 324 cmfalse
- 422 cmfalse
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