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In the figure given below, the cone is right circular cone.

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in Mathematics - Class 9 by (679k points)
In the figure given below, the cone is right circular cone.

(a) True

(b) False

I got this question in class test.

Question is from Surface Area of a Right Circular Cone topic in division Surface Areas and Volumes of Mathematics – Class 9

1 Answer

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The correct choice is (b) False

For explanation I would say: For the cone to be right circular cone, the line joining its vertex to the centre of its base have to be perpendicular to the base. (As shown in the below figure)

But we can see in the given figure that the line is not perpendicular to the base, hence the given cone is not right circular cone.

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