Other Constructions
Line Trisection
We are given a line (AB), and we want to cut it into three equal pieces. To do this:

Another method of line trisection doesn't involve that many circles, but rather a lot of lines! We are given segment
AB (yellow):

Quadrature of a Rectangle The quadrature of a rectangle, is the construction of a square equal in area to a given rectangle. It is somewhat based on the construction for squareroots. Suppose we are given rectangle ABCD:

Quadrature of a Triangle We already know how to square a rectangle. Then squaring a triangle should be no problem. Suppose we are given a triangle:
