A rectangular field is to be fenced on three sides leaving a side of 20 m uncovered. If the area of the field is 680 $m^2$,how many meters of fencing will be required?

PKB PKB Officer BCS 25th BCS Preli - 2004 BB BB AD - 2001 24th BCS Preli - 2003 NTRCA 13th NTRCA College - 2016 Primary Teacher Pre-Primary Teacher - 2015 14th NTRCA - 2017 Pre-Primary Teacher - 2014 BJS 5th BJS Preli - 2010 Agrani Bank Agrani Officer - 2010 PSC DGFP FWV (Trainee) - 2010 BTCL Assistant Director/Accounts Officer - 2004 MoCAT Administrative Officer - 2005 NSI Field Officer - 2017 MoFA Assistant Cipher Officer - 2017 BD POST, Eastern Circle Postal Operator - 2016 MBL Mercantile Officer - 2004 BRDB URDO - 2015 6th NTRCA - 2010 Southeast Bank Southeast Officer - 2005 IFIC IFIC PO - 2011 SIBL SIBL Officer - 2004 EXIM Exim Bank Officer - 2004 DBBL DBBL Officer - 2004 Agrani Officer - 2015 RAKUB RAKUB Officer - 2017 Krishi Bank BKB Data Entry Operator - 2010 Sonali Bank Sonali Officer - 2018 DOL Assistant Director of Labour - 2006 MoLE Assistant Chief Inspector - 2009 BD Post Estimator - 2018 DAE Cashier - 2018 IFIC Asst. Officer - 2018 UCB UCB PO - 2016 PKB Officer - 2019 MOFA – Personal Officer - 2019 CCI&E – Office Assistant - 2020 JBC – Upper Division Assistant - 2021 DTE – Head Assistant / Accountant / Computer Operator - 2021 MOR – Computer Operator - 2021 DSHE – Office Sohayak - 2021 CAAB – Security Operator - 2021 TMED – Various Posts - 2021 CAAB – UDA and Draftsman - 2021 DG Food – SI of Food - 2021 BCIC – Assistant Engineer (Commercial) - 2021 MOR Guard Grade-2 - 2022 Uttara Bank Uttara Officer - 2022 BR Pointsman - 2022 CGA Office Sohayak - 2022 BPSC Junior Instructor - 2023 BFD – Forest Guard - 2023 LGED – Electrician - 2023 PMG Khulna – Mail Operator - 2023 LGED – Office Sohayok - 2023 18th NTRCA - 2024 PDBF – Field Officer - 2025 BARD – AD - 2022 CS Feni – Health Assistant - 2025 ECS – Driver / Cleaner - 2025 BR Trade Apprentice - 2026 DLRS Record Keeper - 2026 BUET DMTCL Section Engineer - 2026 গণিত 2019 আয়তক্ষেত্রের ক্ষেত্রফল

Given, The area 
of the rectangular 
field $$\begin{gathered} =680 m^2 \\ The Leagth of the \\ rec\tan gular =\frac{680}{20} m \\ =34 m \\ Three sides meters of fencing \\ will be required = (34+20+34) m \\ =88 m \end{gathered}$$