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The height of a right circular cone and ...

The height of a right circular cone and the radius of its circular base are respectively 9cm and 3cm. The cone is cut by a plane parallel to its base so as to divide it into two parts. The volume of the frustum (i.e., the lower part) of the cone is 44 cu cm. The radius of the upper circular surface of the frustum `( pi = (22)/7)` is -

A

`root (3)(12) cm`

B

`root (3)(13) cm`

C

`root (3)(6) cm`

D

`root (3)(20) cm`

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CHAMPION PUBLICATION-2011 TIER-II PAPER(23)-EXERCISE
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  2. Base of a right pyramid is a square, length of diagonal of the base is...

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  3. The height of a right circular cone and the radius of its circular bas...

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  4. The ratio of radii of two right circular cylinders is 2 : 3 and their ...

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  5. A solid cylinder has total surface area of 462 sq. cm. Its curved surf...

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  6. A cylinder and a cone have equal radii of their bases and equal height...

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  7. A solid is hemispherical at the bottom and conical above. If the surfa...

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  8. Base of a right prism is an equilateral triangle of side 6 cm. If the ...

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  9. If a+1/a+2=0, then the value of a^37-1/a^100 is यदि a+1/a+2=0, तो ...

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  10. The value of k for which the graph of (k- 1)x+ y-2= 0 and (2-k)x-3y+ ...

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  11. The length of a shadow of a vertical tower is 1/sqrt3 times of its hei...

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  12. The graph of x+ 2y= 3 and 3x-2y = 1 meet the Y-axis at two points havi...

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  13. If x+1/(16x)=1, then the value of 64x^3+1/(64x^3) is यदि x+1/(16x)=...

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  14. If a,b, are three non-zero real numbers such that a + b + c =0, and b ...

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  15. If a ^(4) +a ^(2) b ^(2) + b ^(2) = 8 and a ^(2) + ab + b ^(2) = 4, th...

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  16. If a = 25,b=15, c=-10, then the value of (a^3+b^3+c^3-3abc)/((a-b)^2+(...

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  17. A, B, C are three point on a circle. The tangent at A meets BC produce...

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  18. If the length of a chord of a circle C at a distance of 12 cm from the...

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  19. In triangle ABC, P and Q are the middle points of the sides AB and AC ...

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  20. If O is the circumcenter of triangle ABC and angle OBC = 35^@, then th...

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