Opening the shelf…
Book dossier
by Ed Emberley
Simple rhyming text and illustrations guide the reader to see triangles, rectangles, and circles in everyday things.
Shapes
Esther Sarfatti
Triangle
Sydney LePew
Solution of triangles
Erik Oberg
Shape makers
Michael T. Battista
Party of three
Christianne C. Jones
Triangles
Bonnie Coulter Leech
Folens ideas bank mathematics
Kirkby, David.
Problems for Computer Solution
Stephen J. Rogowski
La géométrie du triangle
Traian Lalescu