Question

plz help me solve these question​

Answer 1

Step-by-step explanation:

b+80=180(linear pair)

b=100

b=a=100(opposite angles) supposing to parallelogram

a+b+c+d=360

100+100+c+d=360

200+c+d=360

c+c=360-200 (c=d)opposite angles

2c=160

c=80

c=d=80