Respostas

2014-06-15T15:55:50-03:00
Adc + bec+afb = 360°adc + 60°+afb = 360°
-360°-60° = -adc - afb-420 = -adc - afb-420 + adc = -afb
adc + 60°+ (-420 + adc) = 360°adc  -360+ adc) = 360°2adc- 360 =360adc- 360 =360/2adc- 360 = 180180= adc
180 + 60 + afb = 360°afb = 120
adc = 180bec = 60afb = 120
1 1 1