{"type":"rich","version":"1.0","title":"三角比挑戰","description":"直角三角形中的三角比：理解並應用 sin、cos、tan 求角與未知邊長。","author_name":"Padlet Arcade","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1783992857035&hashid=BGpqMDAkpQ","html":"<iframe src=\"https://arcade.padlet.com/embed/BGpqMDAkpQ\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","width":720,"height":480,"provider_name":"Padlet Arcade","provider_url":"https://arcade.padlet.com"}