Question

Help please? its geometry ​

Answer 1

∠4=135

Explanation:

vertical angles are always equal

∠1=∠3

3x-9=x+27

3x-x=27+9

2x=36

x=36/2=18

∠1 =3x-9

∠1=3(18)-9

∠1=54-9=45

∠1+∠4=180 degrees

45+∠4=180

∠4=180-45

∠4=135