Construction of angle of 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165...

Construction of angle of 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165 and 180 degree with compass is must to learn for maths. Construction of angles is covered here for class 7, class 8, class 9.