Quadrilateral Names and Angle Sum (Interior and Exterior)

Tema:Ángulos, Paralelogramo, Cuadriláteros, Rectángulo, Rombos, Cuadrado, Trapecio

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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