Question

please tell me the solution of this question??!!​

Answer 1

Answer:

1- 80 because 45+55 =100 then a+b+100 =180 then a+b =80

2- 60

Answer 2

Answer:

(I) 100° (ii) x=20°

Step-by-step explanation:

(I)

a=45°

corresponding angle to 45°

b=55°

alternate interior

(ii)

80+30=x+90

110= x+90

110-90=x

20°=x

hope it helps