The Malfatti Squares
The Malfatti squares are three squares inside a triangle. Each square has two adjacent vertices on two different sides of the triangle; the remaining two vertices are vertices of each of the other two squares.
 F. van Lamoen and P. Yiu, "Construction of Malfatti Squares," Forum Geometricum, 8, 2008 pp. 49–59.
"The Malfatti Squares"
Wolfram Demonstrations Project
Published: March 16 2011