Question

find the unknown angles in the following figures​

Answer 1

Answer:

a = 52

b =128

c= 52

.......

Answer 2

Answer:

1) <c+ 85°+43° =180°

so, <c=180-128

<c=52°

<b+<c= 180°

<b=128°

< a+<b=180

<a=52°