Duba zuwa sashi na ƙasa sannan ka amsa tambayar daga baya a cikin yare iri ɗaya da sashi: Passage: Babban Binciken Trigonometrical wani aiki ne wanda ke da nufin auna dukkanin yankin Indiya tare da daidaito na kimiyya. An fara shi ne a cikin 1802 ta jami'in soja William Lambton, a ƙarƙashin kulawar Kamfanin Indiya ta Gabas. A ƙarƙashin jagorancin magajinsa, George Everest, an sanya aikin a matsayin alhakin Binciken Indiya. Everest ya sami nasara daga Andrew Scott Waugh kuma bayan 1861 James Walker ne ya jagoranci aikin, wanda ya ga farkon kammala shi a 1871. Tambaya: Menene manufar Babban Binciken Trigonometrical?
auna dukkan yankin Indiya