tangent
Yes.
A plane intersects a line at a point, and i plane intersects another plane at a line.
circle just did it on apex
A. Circle just did it on apex!
circle
tangent
A circle~
You a goofy shoty B.
Yes.
Then the cross-section is a circle or a point.
a polygon
A plane intersects a line at a point, and i plane intersects another plane at a line.
Circle.
a circle
circle just did it on apex
A. Circle just did it on apex!
The various shapes are: point, straight line, circle, ellipse, parabola and hyperbola.