Pitot Theorem (Concave and Convex Quadrilaterals)
The sum of the lengths of opposite sides of a quadrilateral circumscribing a circle are equal. Holds for both concave and convex quadrilaterals.
Slopes of Parallel and Perpendicular Lines - Discovery & Assessment: Quick Demo
Tangent lines to curves (implicit differentiation)
Similar Figures: Quick Intro
Inner and Outer Pentagon Points and Conics
Dilations Part 3: What Do You Notice?
Quad is IIogram
Coordinate Grid Exploration