Again, I don't need my trace paper here - revealing the skeleton on the front facade shows the rectangles and squares that make up the inside of the triangle. I swear the Pythagorean Theorem is at work here, but math class was way too many years ago for me to figure it out. Sorry Mr. Seymour, but I took your Geometry I class in 1986!
Click on the link to this architect's site and check out the other shots of this house. The setting and the interior are absolutely breathtaking. The eaves here hang way over and provide a wonderful outdoor shelter.