A cikin wannan ɗaba'ar, za mu yi la'akari da menene ma'aunin ma'aunin kusurwa, a cikin abin da aka auna shi. Mun kuma bayar da taƙaitaccen tarihin tarihi kan wannan batu.
Ƙaddamar da ma'aunin digiri na kusurwa
Adadin jujjuyawar katako AO kewaye da digo O kira kusurwar kwana.
Matsayin digiri na kusurwa - tabbataccen lamba yana nuna sau nawa digiri da abubuwan haɗinsa (minti da na biyu) suka dace da wannan kusurwa. Wadancan. shine jimlar adadin digiri, mintuna, da daƙiƙa tsakanin sassan kusurwar.
Gina - wannan siffa ce ta geometric, wanda aka kafa ta biyu suna fitowa daga aya ɗaya (shine ƙarshen kusurwa).
kusurwar gefe su ne haskoki da suka hada da kwana.
Raka'a kusurwa
Degree - ainihin ma'aunin ma'aunin kusurwar jirgin sama a cikin lissafi, daidai da 1/180 na madaidaiciyar kusurwa. Ana magana da "°".
minute shine 1/60 na digiri. Ana amfani da alamar don nunawa'".
Na biyu shine 1/60 na minti daya. Ana magana da "′′".
misalai:
- 32 ° 12 ′ 45 ″
- 16 ° 39 ′ 57 ″
Ana amfani da kayan aiki na musamman don auna kusurwa - karin.
Gajeriyar labari
An fara ambaton ma'aunin digiri a cikin Babila ta dā, inda aka yi amfani da tsarin lamba na jima'i. Masana kimiyya na wancan lokacin sun raba da'irar zuwa digiri 360. An yi imanin cewa an yi hakan ne saboda akwai kimanin kwanaki 360 a cikin shekara ta hasken rana, haka nan kuma an yi la'akari da ƙaura daga rana ta yau da kullun tare da husufi da sauran abubuwa. Bugu da ƙari, ya fi dacewa don yin lissafin daban-daban.
1 juya = 2π (a cikin radiyo) = 360°