A piece of wire 35cm long is to be cut into two pieces,one piece will be bent into a equilateral triangle and the other a circle.How should the wire be cut so that the enclosed area is minimized?
Suppose the wire is divided into two part. One part is x cm and the other part is 35-x cm. The part with x cm is bent into an equilateral triangle, so each side ...
This shows how to minimize area.