#### INEQUALITY IN TRIANGLE-1189

Proposed by Florin Voinea-Romania INEQUALITY IN TRIANGLE-1189 Solution 1 by Marian Ursarescu-Romania, Solution 2 by Marian Dinca-Romania, Solution 3 by…

Read More

#### SOLUTION JP235-RMM SPRING EDITION 2020

Proposed by Marian Ursarescu-Romania SOLUTION JP235 Solution 1 by Tran Hong-Dong Thap-Vietnam, Solution 2 by Soumava Chakraborty-Kolkata-India, Solution 3 by…

Read More

#### SOLUTION JP228-RMM SPRING EDITION 2020

Proposed by Hung Nguyen Viet-Hanoi-Vietnam SOLUTION JP228 Solution 1 by Marian Ursarescu-Romania, Solution 2 by Tran Hong-Dong Thap-Vietnam, Solution 3…

Read More

#### INTEGRAL INEQUALITY-223

Proposed by Daniel Sitaru-Romania INTEGRAL INEQUALITY-223 Solution by Marian Dinca-Romania

#### CYCLIC INEQUALITY-371

Proposed by Daniel Sitaru-Romania CYCLIC INEQUALITY-371 Solution 1 by Abdelhak Maoukouf-Casablanca-Morocco, Solution 2 by Marian Dinca-Romania, Solution 3 by Hasan…

Read More

#### PROBLEM 223-CUTTHEKNOTMATH

Proposed by Mehmet Sahin-Ankara-Turkey https://www.cut-the-knot.org/triangle/InradiiCircumradii2.shtml Solution 1 by Daniel Sitaru-Romania, Solution 2 by Marian Dinca-Romania, Solution 3 by Miguel Ochoa…

Read More

#### CYCLIC INEQUALITY-263

Proposed by Marian Dinca-Romania CYCLIC INEQUALITY-263 Solution 1 by Khanh Hung Vu-Ho Chi Minh-Vietnam, Solution 2 by Nguyen Ngoc Tu-Ha…

Read More

#### CYCLIC INEQUALITY-146

Proposed by Zdravco Starc-Bulgaria CYCLIC INEQUALITY-146 Solution 1 by Kevin Soto Palacios-Huarmey-Peru, Solution 2 by Soumava Chakraborty-Kolkata-India , Solution 3…

Read More

#### ELEGANT INEQUALITY-230

Proposed by Daniel Sitaru-Romania ELEGANT INEQUALITY-230 Solution 1 by Marian Dinca-Romania, Solution 2 by Tran Hong-Dong Thap-Vietnam

#### CYCLIC INEQUALITY-136

Proposed by Hung Nguyen Viet-Hanoi-Vietnam CYCLIC INEQUALITY-136 Solution 1 by Kevin Soto Palacios-Huarmey-Peru , Solution 2 by Imad Zak-Saida Lebanon…

Read More