Question

How to draw an angle 75 degree using ruler and compass (step by step)

Answer 1

Draw arc of 60 and 120 on the semicircle.
Mark a 90 angle from 60 and 120.
From 90 and 60, mark and intersect the arcs and draw a line through it.
That's a 75 degree angle.

Answer 2

First draw line segment AB
Then make a semicircle from the point A and draw 60 degree angle
Then make 90 degree angle
Then bisect between the 90 and 60 degree