Question

线段a、b、c的边长均为正整数,且满足a≤b≤c若c=5,以线段a、b、c为边长可组成几个三角形?

Answer 1

(a,b,c)

=(1,5,5),(2,4,5),(3,3,5),(3,4,5),(4,4,5),(2,5,5,) (3,5,5) (4,5,5) (5,5,5,)