How many triangles can you make with a perimeter of 12 units

Answer 1

many. the only restriction of the legs is that any one of them cannot be equal nor greater than the sum of the other two.
2,2,8 not allowed, 8 is greater then sum 2+2

1.7,6,4.3 not allowed, six is equal to the sum

1.9,5,5.1 is allowed. No side is greater nor equal to the sum of the other two sides