Calculus: An Applied Approach, Fifth Edition
Ron Larson - The Pennsylvania State University, The Behrend College
Bruce H. Edwards - University of Florida
Application 3.4
1. Surface Area A right circular cylinder of radius r and height h has a volume of 25 cubic inches. The surface area of the cylinder is given by
Use a graphing utility to graph and and find the value of r that yields the minimum surface area.
Use a graphing utility to graph 
and 
and find the value of r that yields the minimum surface area.