[Solved] Which of the following is a conic section?

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Q.	Which of the following is a conic section?
A.	apex
B.	circle
C.	rectangle
D.	square
Answer» B. circle
Explanation: conic sections are formed when a plane cuts through the cone at an angle with respect to the axis of the cone. if the angle is right angle then the conics is a circle, if the angle is oblique then the resulting conics are parabola and ellipse.

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