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Sep 15th, 2019
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  1. #include <iostream>
  2. #include <cmath>
  3. void main()
  4. {
  5. setlocale(NULL, "");
  6.  
  7. float a, b, c;
  8. std::cout << "Введите 3 стороны треугольника: ";
  9. std::cin >> a >> b >> c;
  10. float p = (a + b + c) / 2;
  11.  
  12. std::cout << "Площадь: " << sqrt(p * (p - a) * (p - b) * (p - c)) << std::endl;
  13. std::cin.get(); // system("pause");
  14. }
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