viewimageM.php?id=mathematics&no=29bcc427b78377a16fb3dab004c86b6fcc182254367c30ed21fc9e27eb2d27c432f0ee561614a1e79a0e0dbd5d420b7158cca19f78b1f74189593ade0eca4cf550dbcc67378240c9cefda262d2bfda106bf8d04ac2b802

ab = 6

ad = 3

cd = 4 일때

bc의 길이는?


다른 조건 아무것도 없음 ㅠㅠ