Question

The perimeter of a triangle with integer sides is equal to 15 units. how many such triangles are possible

Answer 1

7 triangles are possible.  (1,7,7) (2,6,7) (3,6,6) (3,5,7) (4,4,7) (4,5,6) (5,5,5)  Concept : Sum of two sides should be greater than the third.  So, there are 7 triangles possible.