Nzvimbo yechinhu chero chipi zvacho chiri pamusoro inogona kurondedzerwa nemapoka maviri: geographical latitude uye longitude. Kusiyana neCartesian coordinates ye ndege, misiyano yemapoka haisi yakafanana nemakiromita ari pamusoro, sezvakaratidzwa mumufananidzo uri kurudyi: kune mumwe munhu ari pa equator, achifamba 30 degrees ye longitude kumadokero (magenta line) inoenderana nedaro remakiromita anenge 3,300 (2,100 mi), nepo kune mumwe munhu ari pa latitude ye55 degrees, achifamba 30 degrees ye longitude kumadokero (blue line) inofukidza chinhambwe chemakiromita anenge 1,900 (1,200 mi). Coats haapi ruzivo rwakakwana rwekutsanangura geometry ye spherical surface, kana kunyangwe yakaoma geometry ye chero nzvimbo kana nguva.
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