The numerical values of the area and perimeter of a triangle are both positive integers. If two of the sides of the triangle have respective lengths of 65 and 68, find the sume of all distinct possibilities for the length of the third side.
有没有好办法？
所有跟帖：
• (海伦公式) -rustican- ♂ 
(45 bytes) () 4/22/11 20:25:45
(45 bytes) () 4/22/11 20:25:45 • 回复：(海伦公式) -cma- ♂ (37 bytes) () 4/22/11 20:37:11
(37 bytes) () 4/22/11 20:37:11 • 回复：有没有好办法？ -jinjing- (10 bytes) () 4/23/11 08:59:30
(10 bytes) () 4/23/11 08:59:30 • 7,21,57 are all answers. -jinjing- (25 bytes) () 4/23/11 12:03:09
(25 bytes) () 4/23/11 12:03:09 • 299 -LingYuan- ♂ 
(0 bytes) () 4/23/11 20:57:08
(0 bytes) () 4/23/11 20:57:08 • Sorry, 299>65+68 -jinjing- (0 bytes) () 4/24/11 08:23:14
(0 bytes) () 4/24/11 08:23:14 • This is the sum of all the 3rd lengths w -LingYuan- ♂ (0 bytes) () 4/25/11 14:38:56
(0 bytes) () 4/25/11 14:38:56 • also too big: 299-65-68>65+68 -jinjing- (0 bytes) () 4/25/11 17:14:11
(0 bytes) () 4/25/11 17:14:11 
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