Question

pls answer this question step by step......
you will get 20points​

Answer 1

Step-by-step explanation:

a) By Angle sum property,

AngleABC + AngleACB + AngleBAC = 180

40 + 45 + x = 180

85 + x = 180

x= 180-85

x=95°

b) By Angle sum property,

(3x-17) + (x+40) + (2x-5) = 180

6x + 18 = 180

6x = 180 - 18

6x = 162

x = 162/ 6

x= 27°

Answer 2

I answered it, if it helps you pls hit thanks button:)