Cabé Sin = Côté opposé / hypothénuse Cos = Côté adjacent / hypothénuse Tan = Côté opposé / Côté adjacent Sin APM = Sin 47° = 0,73135370161917 SinAPM =AM/PM 0,73135370161917 = 4,6/PM PM = 4,6/0,73135370161917 = 6,28970632105354 PM = 6,3 cm cos PMO = Cos 23° = 0,92050485345244 cos PMO = OM/PM cos PMO = OM/6,3 0,92050485345244 = OM/6,3 OM = 6,3*0,92050485345244 = 5,79918057675037 OM = 5,8 cm
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Cos = Côté adjacent / hypothénuse
Tan = Côté opposé / Côté adjacent
Sin APM = Sin 47° = 0,73135370161917
SinAPM =AM/PM
0,73135370161917 = 4,6/PM
PM = 4,6/0,73135370161917 = 6,28970632105354
PM = 6,3 cm
cos PMO = Cos 23° = 0,92050485345244
cos PMO = OM/PM
cos PMO = OM/6,3
0,92050485345244 = OM/6,3
OM = 6,3*0,92050485345244 = 5,79918057675037
OM = 5,8 cm
on a sin(47) = 4,6 / PM donc PM = 4,6 /sin(47)
et on a aussi cos(23) = OM / PM
donc OM = PM * cos(23) = ( 4,6 /sin(47))* cos(23)