Suppose a b and c denote the lengths of the sides of a trian
Solution
Algorithm:
 
 Step 1: INPUT a, b, c
 Step 2 : s = (a + b + c) / 2
 Step 3 : area = sqrt(s(s-a)(s-b)(s-c))
 Step 4 : PRINT area
main.cpp
#include<iostream>
 #include<cmath>
 using namespace std;
int main()
 {
    float a,b,c,s,Area;
    cout<<\"Enter three sides of triangle : \";
    cin>>a>>b>>c;
    cout<<endl;
    s=(a+b+c)/2;
    Area=sqrt(s*(s-a)*(s-b)*(s-c));
    cout<<\"Area of triangle is : \"<<Area;
   
    return 0;
 }
Output:-

