{"type":"rich","version":"1.0","title":"a / c = 5 / 4, b / d = √ ( 2 )","html":"<iframe src=\"https://www.desmos.com/calculator/f604idn5il?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}