Constructions

Bisect an Angle

Perpendicular bisector of a line segment

Circumcentre and Circumcircle

Incentre and Incircle

Altitude and Orthocentre

Median and Centroid

Divide a line segment into equal segments

Construct a tangent to a circle at a point on the circle

Construct an angle of 60 Degrees using a compass and streight edge (or ruler)

Construct a line (m) parallel to a line (k) through a point A

Construct a line perpendicular to a given line k through a point on k

Constuct a line (m) perpendicular to a given line (k) through a point A not on k

Constuct a line (m) perpendicular to a given line (k) through a point A not on k

The following gives a list of all Constructions required for Junior and Leaving Certificate Exams: