In triangle ABC, the external bisectors of the angles B and C intersect at point O. If angle A is 90 degrees, then the measure of the angle BOC is

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গণিত ত্রিভুজের বহিঃস্থ ও অন্তঃস্থ কোণ (Exterior angles and interior angles of a triangle) সমবাহু ত্রিভুজ (Equilateral triangle) BPSC MoCA Protocol Officer BPSC MoCA Protocol Officer - 2026 BPSC PO - 2025 DOT – Office Sohayok - 2024 NPCBL – Electronic Maintenance - 2023 MOD Junior Teacher - 2021

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গণিত ত্রিভুজের বহিঃস্থ ও অন্তঃস্থ কোণ (Exterior angles and interior angles of a triangle) ত্রিভুজের তিন কোণের সমষ্টি দুই সমকোণের সমান। ত্রিভুজ ও ত্রিভুজের প্রকারভেদ (Triangle & Types of Triangle) Primary Assistant Teacher Primary Assistant Teacher - 2026 BPSC Fisheries Survey Officer - 2026 Bangladesh Navy — Upper Division Assistant - 2026 Grameen Officer - 2025 BAEC – Computer Typist - 2025 BR – Ticket Collector - 2024 18th NTRCA - 2024 PGCB – Junior Accounts Assistant - 2024 PMG Khulna – Mail Operator - 2023 BR – Wayman - 2023 LGED – Work Assistant - 2023 BREB – Meter Reader-cum-Messenger - 2023 BREB – Assistant Junior Engineer - 2023 PLI East Zone – PLI Accountant - 2023 GTCL Technician - 2023 BRDB URDO - 2022 DTE – Accountant - 2021 MOR – Office Sohayak - 2021 CAAB – Various Posts - 2021 CAAB – Senior Officer - 2021 DG Food – SI of Food - 2021 DG Food – UDA - 2021 SBC – Upper Division Assistant - 2019 Primary Assistant Teacher - 2018 BD Post Estimator - 2018 13th NTRCA - 2016 MoPA Assistant Director - 2016 Primary Education Officer - 2016 PTI Instructor - 2016 11th NTRCA College - 2014 11th NTRCA - 2014 Pre-Primary Teacher - 2013 32nd BCS Preli - 2012 Primary Head Teacher - 2012 MoLJPA Sub-Registrar - 2012 DSS Social Service Officer - 2010 Primary Assistant Teacher - 2008 DIP Assistant Director - 2007 DOE Assistant Director/Research Officer - 2007