#### ABOUT INEQUALITY IN TRIANGLE-913

Math Note by Marin Chirciu-Romania ABOUT INEQUALITY IN TRIANGLE- 913

#### INEQUALITY IN TRIANGLE-1486

Proposed by Mehmet Sahin-Ankara-Turkey INEQUALITY IN TRIANGLE-1486 Solution by Tran Hong-Dong Thap-Vietnam

#### INEQUALITY IN TRIANGLE-1472

Proposed by Mehmet Sahin-Ankara-Turkey INEQUALITY IN TRIANGLE-1472 Solution by Tran Hong-Dong Thap-Vietnam

#### ABOUT INEQUALITY IN TRIANGLE-899

Math Note by Marin Chirciu-Romania ABOUT INEQUALITY IN TRIANGLE-899

#### IDENTITY IN TRIANGLE-174

Proposed by Mehmet Sahin-Ankara-Turkey IDENTITY IN TRIANGLE-174 Solution by Tran Hong-Dong Thap-Vietnam

#### IDENTITY IN TRIANGLE-173

Proposed by Mehmet Sahin-Ankara-Turkey IDENTITY IN TRIANGLE-173 Solution by Tran Hong-Dong Thap-Vietnam

#### IDENTITY IN TRIANGLE-172

Proposed by Mehmet Sahin-Ankara-Turkey IDENTITY IN TRIANGLE-172 Solution by Tran Hong-Dong Thap-Vietnam

#### IDENTITY IN TRIANGLE-171

Proposed by Mehmet Sahin-Ankara-Turkey IDENTITY IN TRIANGLE-171 Solution 1 by Tran Hong-Dong Thap-Vietnam, Solution 2 by Thanasis Gakopoulos-Larisa-Greece

#### IDENTITY IN TRIANGLE-167

Proposed by Mehmet Sahin-Ankara-Turkey IDENTITY IN TRIANGLE-167 Solution by Daniel Sitaru-Romania

#### IDENTITY IN TRIANGLE-166

Proposed by Mehmet Sahin-Ankara-Turkey IDENTITY IN TRIANGLE-166 Solution by Daniel Sitaru-Romania