tangent
Yes.
A plane intersects a line at a point, and i plane intersects another plane at a line.
A. Circle just did it on apex!
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 plane intersects a line at a point, and i plane intersects another plane at a line.
a circle
Circle.
A. Circle just did it on apex!
circle just did it on apex
a polygon
The various shapes are: point, straight line, circle, ellipse, parabola and hyperbola.