a) L= (2π-36-100)/360 = 20T L = (2πR-u)/360°
b) L = (2T-15-120)/360 = 10T
c) L (2T-18-240)/360 = 24T
d) L = (21-10-72)/360 = 4TT
sper ca te am ajutat!!:))
coronita?