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// C++
// Calc The Rectangle area Through Diagonal and Side Area
#include <iostream>
#include <cmath>
using namespace std;
float RATDASAreaFn(float a, float d)
{
float Area = a * (sqrt(pow(d, 2) - pow(a, 2)));
return Area;
}
int main()
{
float a, d;
cout << "Enter Diagonal Area {a} number: ";
cin >> a;
cout << "Enter Side Area {d} number: ";
cin >> d;
cout << "The Result Of Rectangle area Through Diagonal and Side Area Is: " << RATDASAreaFn(a, d) << endl;
return 0;
}