কোন ত্রিভুজের একটি বাহু উভয় দিকে বর্ধিত করায় উৎপন্ন বহিঃস্থ কোণগুলো পরস্পর সমান হলে ত্রিভুজটি--

NTRCA 8th NTRCA College Principal গণিত সমদ্বিবাহু ত্রিভুজ (Isosceles triangle)

PSC MinLand Office Assistant Cum Computer Typist BPSC SAE (Civil) - 2017 BPSC – Personal Officer - 2019 CAAB – Medical Officer / Aerodrome Assistant - 2021 MinLand Office Assistant Cum Computer Typist - 2026 গণিত সমদ্বিবাহু ত্রিভুজ (Isosceles triangle)

PSC CS Cox’s Bazar Statistician Primary Teacher Pre-Primary Teacher - 2015 DOA – Assistant Custodian/Research Assistant - 2023 BPSC – NIPORT – Home Economist - 2024 CS Cox’s Bazar Statistician - 2025 গণিত সমদ্বিবাহু ত্রিভুজ (Isosceles triangle)

PSC PWD Accounts Assistant / Office Assistant NTRCA 9th NTRCA College - 2013 BBS JSAO - 2014 11th NTRCA - 2014 MoPA Personal Officer - 2016 Secondary Teacher Govt Secondary Teacher - 2011 BTV Audience Research Officer - 2006 BR SAE - 2017 DIP Assistant Director - 2003 Directorate of Posts Various Post - 2022 PMG Northern Circle Postman - 2022 PGCB – Technical/Office Assistant - 2024 DLRS – Chainman - 2025 PWD Accounts Assistant / Office Assistant - 2025 গণিত সমদ্বিবাহু ত্রিভুজ (Isosceles triangle)

PSC BPSC – MFA – Personal Officer BCS 36th BCS Preli - 2016 BTV Assistant Engineer (Civil) - 2017 BPO – Postal Operator - 2019 PLI East Zone – PLI Accountant - 2023 CS Pabna – Health Assistant - 2024 BPSC – MFA – Personal Officer - 2025 গণিত সমদ্বিবাহু ত্রিভুজ (Isosceles triangle)

PSC DLRS – Chainman NTRCA 9th NTRCA College - 2013 BBS JSAO - 2014 11th NTRCA - 2014 MoPA Personal Officer - 2016 Secondary Teacher Govt Secondary Teacher - 2011 BTV Audience Research Officer - 2006 BR SAE - 2017 DIP Assistant Director - 2003 Directorate of Posts Various Post - 2022 PMG Northern Circle Postman - 2022 PGCB – Technical/Office Assistant - 2024 DLRS – Chainman - 2025 PWD Accounts Assistant / Office Assistant - 2025 গণিত সমদ্বিবাহু ত্রিভুজ (Isosceles triangle)