Surface Area and Volumes (IMO Mathematics Olympiad Class 9): Questions 26  31 of 104
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Question number: 26
» Surface Area and Volumes
Question
The ratio between the perimeter and breadth of rectangle is . If the area of the rectangle is 116 sq. cm. then length of the rectangle is ________
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Question number: 27
» Surface Area and Volumes
Question
The volume of a sphere is the curved surface of its sphere is ________
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Question number: 28
» Surface Area and Volumes
Question
The radii of two cones are in ration 3: 1, their volumes are equal. Find the ratio of their heights.
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Question number: 29
» Surface Area and Volumes
Question
A solid consists of a circular cylinder with an exact fitting right circular cone placed on the top. The height of a the cone is h. If the total volume of the solid is three times the volume of the cone, then the height of the cylinder is ________
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Question number: 30
» Surface Area and Volumes
Question
The area of rhombus is and one of its diagonals is 8 cm. Its perimeter is ________
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Question number: 31
» Surface Area and Volumes
Question
216 plastic balls each of radius r are melted together to from one big sphere of radius R. then the ratio of surface area of the big sphere to that of a ball is ________
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Choice (4)  Response  

a.  36 

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c.  9 

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