The below given steps will be followed to construct an angle of 135° and its bisector.
(1) ∠POQ of 135° measure can be formed on a line l by using the protractor.
(2) Draw an arc of a convenient radius, while taking point O as centre. Let it intersect both rays of angle 135° at point A and B.
(3) Taking A and B as centres, draw arcs of radius more than 
AB in the interior of angle of 135°.
Let those intersect each other at C. Join OC.
OC is the required bisector of 135° angle.
