corrige_livre.pdf - j.galtier...
2. = 120 mm².. STR = arccos (. ST. RT. ) = arccos(. 24. 26. ) ? 23°.. SRT = 90 ?. STR ? 67°. 10 + 24 + 26 = 60 mm. 10 × 24. 2. = 120 mm². 23°. 67° ...
2. = 120 mm².. STR = arccos (. ST. RT. ) = arccos(. 24. 26. ) ? 23°.. SRT = 90 ?. STR ? 67°. 10 + 24 + 26 = 60 mm. 10 × 24. 2. = 120 mm². 23°. 67° ...