Area of largest triangle that can be inscribed within a rectangle in C Program?

Suppose one rectangle is given. We know the length L and breadth B of it. We have to find the area of largest triangle that can be inscribed within that rectangle −

The largest triangle will always be the half of the rectangle. So it will be

Example

#include <iostream> #include <cmath> using namespace std; float area(float l, float b) {    if (l < 0 || b < 0 ) //if the valuse are negative it is invalid       return -1;    float area = (l*b)/2;    return area; } int main() {    float a = 10, b = 8;    cout << "Area : " << area(a, b); }

Output

Area : 40