Drexel dragonThe Math ForumDonate to the Math Forum

Ask Dr. Math

Cone, Cylinder Edges?

_____________________________________________
Dr. Math Home || Elementary || Middle School || High School || College || Dr. Math FAQ
_____________________________________________

Does a cone have an edge? Does a cylinder have an edge? a selection of answers from the Dr. Math archives.

Parts of a Cone
Does a solid cone have any edges?

Does a Cone have an Edge? A Vertex?
Our 4th grade math textbook defines a cone as "A solid figure with one circular face and one vertex." This sounds reasonable until you read the textbook's definitions for face, edge, and vertex.

Number of Cylinder Edges
My son was asked "how many edges are there on a solid cylinder?" on a recent math examination. His answer was "2" and it was marked incorrect.

Types of Cones
Does a cone have an edge? Does it depend on what type of cone you have? What are the different types of cones?

Return to
Elementary 3D Geometry
Middle School 3D Geometry
High School 3D Geometry
Index of Selected Answers to Common Questions

[Privacy Policy] [Terms of Use]

_____________________________________
Home || The Math Library || Quick Reference || Search || Help 
_____________________________________

© 1994-2014 Drexel University. All rights reserved.
http://mathforum.org/
The Math Forum is a research and educational enterprise of the Drexel University School of Education.The Math Forum is a research and educational enterprise of the Drexel University School of Education.