Question 1144765
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In Math, the term "edge" means "a line", by the definition.


The other term, closed by the meaning, is "a face". It relates to parts of the surface  of a solid body . . . 


The term related to a point, in this context, is "a vertex" (plural "vertices").



Look into my lessons 

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Volume/_Volume-of-prisms.lesson>Volume of prisms</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Volume/_Volume-of-pyramids.lesson>Volume of pyramids</A>

in this site.



Outside of Math, the term "edge" may have other meaning/meanings.