Bonjour,
triangle ABC
Sin 56° = AB/123
donc AB = Sin 56° × 123 = 101,971621..... ≅ 102 cm
Cos 56° = AC/123
donc AC = Cos 56° × 123 = 68,780727.... ≅ 68,8 cm
triangle PHO
Sin 62° = 58,7/PO
donc PO = 58,7/Sin 62° = 66,481.... ≅ 66,5 cm
Tan 62° = 58,7/HO
donc HO = 58,7/Tan 62° = 31,211.... ≅ 31,2 cm
Triangle TGI
Tan 23° = IT/19
donc IT = Tan 23° × 19 = 8,065.... ≅ 8,07 m
Cos 23° = 19/GI
donc GI = 19/Cos 23° = 20,640..... ≅ 20,64 m
