Curved surface area of a cone is 308 cm⊃2; and its slant height is 14 cm.
Answer: B
Curved surface area=πrl
So r=7 cm
Now total surface area=πr⊃2;+πrl=462 cm⊃2;
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A solid with a vertex and a base that is formed by a simple closed curve is a
Answer: B
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A cone with a circular base of radius 5cm and height 12cm has surface area of
Answer: A
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The slant height of the frustum of a cone having radii of two ends as 5 cm and 2 cm respectively and height 4 cm is
Answer: B
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If water flows from a pipe with height of 5m and diameter of 86mm at rate of 6m/s then volume of water discharged per minute is
Answer: D
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A shuttle cock used for playing badminton has the shape of the combination of
Answer: D
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A piece of paper is in the shape of a semi¬circular region of radius 10 cm. It is rolled to form a right circular cone. The slant height is
Answer: B
Slant height l = r
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A shuttlecock used for playing badminton has the shape of the combination of
Answer: D
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If a hemisphere has a curved surface area of 175cm⊃2; its radius is
Answer: A
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If the radius of a sphere is doubled, then what is the ratio of their surface area?
Answer: C
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