Tapering Timbers: Finding the Volume of Conical Frustums
Dustin L. Jones and Max Coleman
March 2012, Volume 105, Issue 7, Page 500
Many everyday objects—paper cups, muffins, and flowerpots—are examples of conical frustums. Shouldn’t the volume of such figures have a central place in the geometry curriculum?
Reasoning and Proof
Similarity / Congruence