Respuesta :

treviglaslibrary

Answer:

1) a 130° - (360 - (50×2)) /2

B 50° - opposite angles

2) a 25° - 90° - 65 = 25 °

B 270° - 360° - 90° = 270°

3) a ) 60° - 180° - 120° = 60° (there are 180° in a straight line)

B) 90° - 180°-90° = 90°

oumaroumyriam

Answer:

a.

a°=130

b°=50

b

a°=25

b°=270

c

a°=60

b°=90

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