একটি বিষমবাহু ত্রিভুজের বাহু তিনটির পরিমাপ 42 সেন্টিমিটার, 34 সেন্টিমিটার এবং 20 সেন্টিমিটার। ত্রিভুজটির ক্ষেত্রফল কত?

Created: 11 months ago | Updated: 1 month ago

Updated: 1 month ago

ক

256 বর্গ সেন্টিমিটার
খ

328 বর্গ সেন্টিমিটার
গ

336 বর্গ সেন্টিমিটার
ঘ

576 বর্গ সেন্টিমিটার

173

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MCQ: 36 CQ: 15

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ত্রিভুজের তিন বাহু দেওয়া থাকলে ক্ষেত্রফল

ত্রিভুজের তিন বাহু দেওয়া আছে :

মনে করি, △ABC এর BC = a, CA = b এবং AB = c । এর পরিসীমা 2s = a + b + c l AD ⊥ BC আঁকি।

ধরি, BD = x তাহলে, CD = a - x

△ABD এবং △ACD সমকোণী।

আবার,

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PSC MoIB Assistant Information Officer BCS 24th BCS Preli - 2003 DIP Assistant Director - 2014 NTRCA 14th NTRCA - 2017 BJS 4th BJS Preli - 2009 MoLJPA Assistant Secretary (Drafting) - 2001 MoFA Administrative Officer - 2004 UCB UCB Officer - 2010 MoWCA Upazila Women Affairs Officer - 2016 Law Ministry Sub-Registrar - 2016 RAKUB RAKUB Officer (Cash) - 2010 BAFL Alfalah MTO - 2005 BRDB Officer - 2012 REB Assistant Secretary/Assistant Director (Admin) - 2013 DG Food SI Food - 2012 BRDB URDO - 2012 Secondary Teacher Govt Secondary Teacher - 2011 31st BCS Preli - 2011 DNS Assistant Director - 2009 CBHC CHCP - 2018 BMET Instructor (TTC) - 2018 Rupali Bank Rupali Officer - 2018 Sonali Bank Sonali Senior Officer - 2018 Primary Teacher Primary Assistant Teacher - 2019 16th NTRCA College - 2019 BREB – Assistant Enforcement Coordinator - 2019 BFSA – Various Posts - 2019 JBC – Upper Division Assistant - 2021 NSI – Wireless Operator and Accountant cum-Cashier - 2021 DTE – Head Assistant / Accountant / Computer Operator - 2021 TMED – Office Assistant cum-Computer Typist - 2021 TMED – Various Posts - 2021 OCAG – Auditor - 2021 EED – Office Sohayak - 2021 Combined Bank Combined Bank Officer - 2021 BREB – Assistant Enforcement Coordinator - 2021 CGA – Auditor - 2022 Biman – Ground Service Assistant - 2022 MOR Guard Grade-2 - 2022 FSCD Station Officer - 2022 15th NTRCA - 2019 CBHC CHCP - 2022 DLS Laboratory Technician - 2023 DGHS – Medical Technician - 2023 PKB PKB Officer - 2023 KB Karmasangsthan Officer - 2023 MRA – Assistant Director - 2023 FSCD – Firefighter - 2023 Prisons – Jail Warder & Female Jail Warder - 2024 BUET Petrobangla – Sub-Assistant Engineer - 2024 Biman – Traffic Helper - 2024 OBL ONE Officer - 2025 GrameenBank Grameen Officer - 2025 ECS – Driver / Cleaner - 2025 EED – SAE (Civil) - 2025 IBBL IBBL Officer - 2017 CAAB – Security Supervisor - 2025 FSCD – Station Officer (Non Cadre) - 2025 Combined Bank Officer - 2025 BJSC Office Assistant - 2026 PMG Chattogram Postman - 2026 Bangladesh Post Khulna Multiple Posts - 2026 MoIB Assistant Information Officer - 2026 8th NTRCA Assistant Head - 2026 BSCIC Technical Officer - 2026 GTCL Technician - 2023 গণিত ত্রিভুজের তিন বাহু দেওয়া থাকলে ক্ষেত্রফল

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