viewimage.php?id=2ab8df2be0c62abf&no=24b0d769e1d32ca73cec8ffa11d0283137a147df66c0ff0e9ff48d5b5e7156d27dac9ad30a59bd7b414b44f5e2928fab4352d415bfc2df41b860c8a112e8e5f416660878

AB=AD

BC=4sqrt(3)