Correct option is A
Given:
A right circular cone is cut by a plane parallel to its base.
Concept used (if any):
When a plane cuts a cone parallel to its base, the section obtained is similar and parallel to the base.
The base of a right circular cone is a circle.
When a plane cuts a cone parallel to its base, the section obtained is similar and parallel to the base.
The base of a right circular cone is a circle.
Solution:
The base of the cone is circular.
A plane parallel to the base will intersect the cone in a smaller, similar circular shape.
Correct answer is (a) circle
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