INEQUALITY IN TRIANGLE BY MEHMET ȘAHIN-1, INEQUALITY IN TRIANGLE BY MEHMET ȘAHIN-2, INEQUALITY IN TRIANGLE BY MEHMET ȘAHIN-3, INEQUALITY IN TRIANGLE BY MEHMET ȘAHIN-4, INEQUALITY IN TRIANGLE BY MEHMET ȘAHIN-5, INEQUALITY IN TRIANGLE BY MEHMET ȘAHIN-6, INEQUALITY IN TRIANGLE BY MEHMET ȘAHIN-7
IDENTITY IN TRIANGLE BY MEHMET ȘAHIN, IDENTITY IN TRIANGLE BY MEHMET ȘAHIN-2