{"type":"rich","version":"1.0","title":"AC = 2 AB / 3 ⇒ Ratio = 1 / 8","html":"<iframe src=\"https://www.desmos.com/calculator/4qdhafwfar?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}