How many constructions are to be done for HL Maths?

noubliezjamais

I'm wondering how many do I have to practice. Is there a link of all of them online? Thanks.

spurious

The prescribed constructions are:
1. Bisector of a given angle, using only compass and straight edge.
2. Perpendicular bisector of a segment, using only compass and straight edge.
3. Line perpendicular to a given line l, passing through a given point not on l.
4. Line perpendicular to a given line l, passing through a given point on
l.
5. Line parallel to given line, through given point.
6. Division of a segment into 2, 3 equal segments, without measuring it.
7. Division of a segment into any number of equal segments, without measuring it.
8. Line segment of given length on a given ray.
9. Angle of given number of degrees with a given ray as one arm.
10. Triangle, given lengths of three sides.
11. Triangle, given SAS data.
12. Triangle, given ASA data.
13. Right-angled triangle, given the length of the hypotenuse and one other
side.
14. Right-angled triangle, given one side and one of the acute angles (several cases).
15. Rectangle, given side lengths.
16. Circumcentre and circumcircle of a given triangle, using only straightedge and compass.
17. Incentre and incircle of a given triangle, using only straight-edge and
compass.
18. Angle of 60◦ , without using a protractor or set square.
19. Tangent to a given circle at a given point on it.
20. Parallelogram, given the length of the sides and the measure of the
angles.
21. Centroid of a triangle.
22. Orthocentre of a triangle.

(From)Syllabus for LCHL
13.1 Constructions
A knowledge of the constructions prescribed for JC-HL will be assumed,
and may be examined. In addition, students will study the constructions
prescribed for LC-OL, and construction 22.

You might run that past a Maths teacher, in case I misread the documents.