Parallelograms - More Parallelograms - Proofs and Parallelograms
Emath Parallelograms - More more Parallelograms - Properties of Parallelograms
Rectangles - Emath Rectangles
Emath Rhombus - Properties of Rhombus
- Proofs with Rhombus, Khan Academy
Emath Squares Square properties
Emath Quadrilaterals and Trapezoid - Trapezoids and finding Angles
Proving Triangles with Isos Trap - Isos Trap Proof - prove diagonals are congruent
--> search any topic on www.youtube.com for MORE! There are a ton of math videos!
NOT videos!, but great practice
(Two)links for some help to practice quadrilaterals ~ Properties of Quadrilaterals (NOT a video)