{"type":"rich","version":"1.0","title":"三角形邊角偵探","author_name":"新湖國中洪榮忠","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1779966804550&hashid=mVraYmlMr1","html":"<iframe src=\"https://arcade.padlet.com/embed/mVraYmlMr1\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","width":720,"height":480,"provider_name":"Padlet Arcade","provider_url":"https://arcade.padlet.com"}