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Quadrilateral Names and Angle Sum (Interior and Exterior)
Author:
Morton Betts
Topic:
Angles
,
Parallelogram
,
Quadrilaterals
,
Rectangle
,
Rhombus
,
Square
,
Trapezium
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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