10 concentric circles Posted on July 11, 2012 by akeeler Here ate my notes f Continue reading → Advertisements

60 triangle notes with Keeler Posted on December 14, 2011 by akeeler Triangle sum theorem: the angles add up to 180° Exterior angle is supplementary to the interior angle. 180°-115°=65° can have ONE 90° angle OR ONE obtuse angle. 180°/3 = 60° equiangular