⇒mark the vertex of your angle anywhere on the paper
⇒draw a ray AB,extending in any direction and of any length
⇒drop a perpendicular to the ray AB at any chosen point(say x)
⇒set width of the compass equal to the distance AB(retain this width for the following step)
⇒place the tip of the compass on X and draw an arc so to cut the perpendicular at the same point(say Y)
⇒connect the points A and Y with a straight line and extend it to form a ray AL..