Contribution :)

来源: 于 2012-12-07 07:06:08 [旧帖] [给我悄悄话] 本文已被阅读：次

First by intuition, the answer is 11 ( factor 66), which makes the height 12 puting 11 as base. Then 5, 12, 13,  and 12, 16, 20 (3,4,5) are right triangle sides. 16-5=11 verified.