{"type":"rich","version":"1.0","title":"Green Area = ( 5 S 𝜋 / 8 ) - S","html":"<iframe src=\"https://www.desmos.com/calculator/q8fjb91iz5?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}