{"type":"rich","version":"1.0","title":"Integer AB = 7 ⇒ R = 4.912845231173","html":"<iframe src=\"https://www.desmos.com/calculator/le9cy8hmxw?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}