One of two numbers that can be both the area and perimeter of a triangle whose side lengths are a Pythagorean triple?

Question

bobpursley · Answer

It is here... http://www.mcs.surrey.ac.uk/Personal/R.Knott/Pythag/pythag.html#patterns

tchrwill · Answer

One of two numbers that can be both the area and perimeter of a triangle whose side lengths are a Pythagorean triple. The 5-12-13 Pythagorean Triple triangle has an area and perimeter of 30.