LEVEL+FOUR+CCSL

** Allangler Quadrilateral **

Definition: A quadrilateral with one right angle, one reflex angel, and two acute angles.

Property: It has one reflex angle, and one right angle.

Why is it unique? Parallelograms, kite, and trapezoids only had acute and right angles. However, our "allangler quadrilateral" has one reflex angel, that supports our unique figure.