Quadrilateral Names and Angle Sum (Interior and Exterior)

Thème :Angles, Parallélogramme, Quadrilatères, Rectangle, Losange, Carré, Trapézoïde

How to name quadrilaterals. The conditions for naming quadrilaterals. Proof the sum of interior (inside) angles = 360 deg. Proof the other three angles equal exterior angle.

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Classifying Triangles
Rectangle Construction Template (V2)
Sum of Squares: Proof without Words
Slope Between 2 Points (Phase 2)

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