Quadrilateral With Opposite Angles Congruent

Applet is designed to accompany a class activity I authored. Yet it can be easily used to quickly have students discover that if both pairs of opposite angles of a quadrilateral are congruent, then that quadrilateral is a parallelogram.

 

Tim Brzezinski

 
Type de ressources
Activité
Balises
angle  angles  ccss  ccss.hsg.co.c.11  common  common-core  congruent  core  discovery  opposite  parallelogram quadrilateral theorem Voir davantage …
Tranche d'âges
11 – 14
Langue
English
 
 
 
© 2025 International GeoGebra Institute