Explore the hyperbolic version of Pythagoras' theorem in this 36-minute lecture on Universal Hyperbolic Geometry. Delve into the fundamental concepts of quadrance measurement between points, and understand how this theorem serves as a deformation of its Euclidean counterpart. Learn about point and line incidence, cross ratios, and the projection of 3D space onto a viewing plane. Examine the quadrance formula in planar coordinates, complete with illustrations and examples. Follow the step-by-step proof of the hyperbolic Pythagoras' theorem, witnessing a "small miracle" in the process. Engage with practical exercises to reinforce your understanding of this pivotal concept in hyperbolic geometry.