○ আয়ত ○ বর্গ ○ সামান্তরিক ○ সাইন কোসাইন ফর্মূলা Entries built from the report of legal rights are believed being legitimate until eventually the contrary has become recognized. Where the inference is contradicted by proof, the necessity of the entry within the File of Suitable will not be evidentiary. https://sbscltd.com/land-survey-bd/