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- #include <iostream>
- #include <math.h>
- using namespace std;
- float pr() {
- double a, b, S1;
- cout << "Введите значения для первой стороны: ";
- cin >> a;
- cout << "\nВведите значения для второй стороны : ";
- cin >> b;
- S1 = a * b;
- return S1;
- }
- int main() {
- setlocale(LC_ALL, "ru");
- double S1, S2, S3;
- S1 = pr();
- cout << S1;
- }
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