Question

how to construct 75 degree angle using compass and ruler?

Answer 1

first draw a straight line segment name it A and B
second take the leg of the compass on a and draw 90 degree with the help of compass then 60 degree the angle between 90 degree and 60 degree will be of 30 degree then draw the bisector of that 30 degree
the complete angle including 60 degree and the bisector of 30 degree i. e., 15 degree will be of 75 degrees. as 60+15=75

Answer 2

-To construct 75 degree we must first construct 90 degree.
-Then we must construct 60 degree.
-cut an arc from 90 degree above as well as another arc from 60 degree above.
-They both will meet at a point.
-Join the point from the centre where you have drawn the 90 degree.
-This is 75 degree