Volume and Surface Area Questions Practice Question and Answer
8 Q: If the length of the diagonal of a square is $${ 10\sqrt{2}}$$ cm, then what will be the area of the square?
501 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?
451 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
492 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 -
482 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
512 06116240d56340c20700ac888
6116240d56340c20700ac888- 116 cmfalse
- 228 cmtrue
- 324 cmfalse
- 422 cmfalse
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Answer : 2. "28 cm"
Q: The length, breadth and height of a room is 21 metres, 12 metres and 16 metres. What will be the length of the largest rod that can be placed in that room?
593 0610c66037588510aa0d4d2f3
610c66037588510aa0d4d2f3- 132 metresfalse
- 225 metresfalse
- 331 metresfalse
- 429 metrestrue
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Answer : 4. "29 metres"
Q: The height of a cone is 16 cm and radius of its base is 30 cm. If the rate of painting it is Rs.14/cm2, then what will be the total cost in painting the curved surface of cone from outside?
569 0610c067aa0824f7eeb5cabf0
610c067aa0824f7eeb5cabf0- 1Rs. 42220false
- 2Rs. 44880true
- 3Rs. 36820false
- 4Rs.46540false
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Answer : 2. "Rs. 44880"
Q: The slant height of a right circular cone is 15 m and its height is 9 m. The area of its curved surface, is:
511 060c09b7f3a55aa3a4ad09e08
60c09b7f3a55aa3a4ad09e08- 1169 π m2false
- 2172 π m2false
- 3165 π m2false
- 4180 π m2true
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