Question

how to draw 135 degree angle without using protractor?

Answer 1

to draw a 135degree angle
construct a 120degree Angle using compass
on the same angle construct a 180 degree angle 
bisect the remaining  60 degree angle
you will get an angle of   150 degree  angle bisect  the angle between 150 and 120
you will get the 135 degree angle

Answer 2

Step-by-step explanation:

take the angle bisector between 120 degree and 180 degree hope it helps you