Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Babban Binciken Trigonometrical wani aiki ne wanda ke da nufin auna dukkanin yankin Indiya tare da daidaito na kimiyya. An fara shi a cikin 1802 ta jami'in sojan William Lambton, a ƙarƙashin jagorancin Kamfanin East India. A karkashin jagorancin magajinsa, George Everest, aikin ya zama alhakin binciken Indiya. Andrew Scott Waugh ne ya gaji Everest kuma bayan 1861 James Walker ne ya jagoranci aikin, wanda ya ga farkon kammala shi a 1871.  Tambaya: Menene manufar binciken Trigonometrical mai girma?
auna dukkan yankin Indiya