The triangle 5,12,13 has an area A=30 and a perimeter P=30, so A/P is 1.
The triangle 9,75,78 has an area A=324 and a perimeter P=162, so A/P is 2.
Find the smallest and largest integer-sided triangles where A/P is 10.
(In reply to
the case for right triangles by xdog)
This is a parametrization as in a Primitive Pythagorean Triangle, which is only a special case of an Integer Triangle.