Conic Sections
From DT Online
https://en.wikipedia.org/wiki/Conic_section Conic Sections
A Cone can be described as the Locus of all lines joining points on the circumfernce of a circle to a point above it.
https://en.wikipedia.org/wiki/Conic_section Conic Sections
A Cone can be described as the Locus of all lines joining points on the circumfernce of a circle to a point above it.