{"type":"rich","version":"1.0","title":"Proof: a ^ 2 = b ^ 2 + c ^ 2","html":"<iframe src=\"https://www.desmos.com/calculator/hfdwdcyczq?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}