text: appaulleta Iyya makencangnge  paada laona Struve Geodetic Arc risininna jilauna Eropa  (1816-1855) nenniya Great Trigonometrical Survey ri India (1802-1871) maalai wettu marga naekiya punnai wassele manessa rimodele'na rilalena iyyae taana onrong atuwongnge.