Representing positive numbers as lengths of segments
Representing positive numbers as areas or volumes
Inequalities and the existence of triangles
Using incircles and circumcircles
Using reflections
Using rotations
Employing non-isometric transformations
Employing graphs of functions
Additional topics.
When less is more : visualizing basic inequalities by Claudi Alsina. ISBN 9780883853429. Published by Mathematical Association of America in 2009. Publication and catalogue information, links to buy online and reader comments.