Explore the four main laws of trigonometry in Universal Hyperbolic Geometry through a 20-minute video tutorial using Geometer's Sketchpad. Learn about Pythagoras' theorem, the Triple quad formula, the Spread law, and the Cross law with custom tools for calculating quadrance and spread. Examine various examples illustrating each law, discover dual triangles, and gain insights into additional features of Geometer's Sketchpad. The tutorial covers topics such as quadrance, spreads, perpendicularity, and provides a comprehensive overview of trigonometric principles in hyperbolic geometry.