Programming Examples

Cpp program to check entered three sides can form triangle.


Write a cpp  program to input three sides of a triangle and check whether it can form a triangle or not.

The sum of two sides of a triangle should be greater than the third side .

#include
using namespace std;
int main()
{
     float a,b,c;
     cout<<"Enter three sides ";
     cin>>a>>b>>c;
     if((a+b)>c && (b+c)>a && (a+c)>b)
     {
          cout<<"It can form a triangle";
     }
     else
     {
          cout<<"It cannot form a triangle";
     }
     return 0;
}
Output

Enter three sides

13.5

10.2

23.6

It can form a triangle

------------------------------

Enter three sides 

2

5

7

It cannot form a triangle


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