Question

please do it fast with full explanation​

Answer 1

Answer:

Step-by-step explanation:

a.60(120+60=180)

b.100(100-80=180)

c.120(120-60=180)

d.80(100-80=180

Answer 2

Answer:

a = 180 - 120 = 60 ( linear pair)

b= 180 -80=100 ( linear pair)

C=180-60=120 ( linear pair)

d =180-( 360-(120+60+80)=100 )= 80