Parallelogram interior angles

If both pairs of opposite angles of a quadrilateral are congruent, the quadrilateral is a parallelogram. If one angle is supplementary to both consecutive angles in a quadrilateral, the quadrilateral is a parallelogram.

 

aornelas6

 
Materialtyp
Aktivität
Tags
parallelograms 
Zielgruppe (Alter)
19+
Sprache
English (United States)
 
 
GeoGebra Version
4.2
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1873
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