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# 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

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