{"type":"rich","version":"1.0","title":"Geometric Proof: Vertical Angles","description":"Players arrange scrambled proof steps into a correct logical order for short geometric arguments. The proofs use facts about vertical angles, parallel lines cut by a transversal, and perpendicular bisectors to build valid theorem-based reasoning. (HSG.CO.C.9)","author_name":"Padlet Arcade","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1775106836144&hashid=3qpAX7GbjD","html":"<iframe src=\"https://arcade.padlet.com/embed/3qpAX7GbjD\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","width":720,"height":480,"provider_name":"Padlet Arcade","provider_url":"https://arcade.padlet.com"}