Think of angle bisector construction

Recall the things needed to construct a bisector

Try to draw the angles and see whic angles you cannot draw.

Try to draw them and see which angles you are able to draw.

Perpendicular bisector is the line that bisects line segment perpendicularly.

The figure formed by the intersection point of pair of tangents, the two end points of those two radii (at which tangents are drawn) and the centre of circle, is a quadrilateral. Thus the sum of the opposite angles in this quadrilateral must be 180^{o}.

think what information we need to construct triangle

Recall the steps for the perpendicular bisector.

Try to draw the angles and see which angles you are able to draw.

Recall the steps to construct 54^{o}.