Constructions

Copy a Line Segment:

http://www.mathopenref.com/constcopysegment.html

https://www.youtube.com/watch?v=s282TNIHGCo

Bisect a Segment:

http://www.mathsisfun.com/geometry/construct-linebisect.html

https://www.youtube.com/watch?v=QAMOFWrKEUA

http://www.mathopenref.com/constbisectline.html

Bisect an Angle:

http://www.mathsisfun.com/geometry/construct-anglebisect.html

https://www.youtube.com/watch?v=nysMOfPsAfI

http://www.mathopenref.com/constbisectangle.html

Copy an Angle:

http://www.mathsisfun.com/geometry/construct-anglesame.html

http://www.mathopenref.com/constcopyangle.html

https://www.youtube.com/watch?v=gC7B_K59ypU

https://www.youtube.com/watch?v=SvRJ5qv4nz0

Construct a Perpendicular to a Line Through a Point:

http://www.mathsisfun.com/geometry/construct-perpnotline.html

http://www.mathopenref.com/constperpextpoint.html

https://www.youtube.com/watch?v=fXX0pAhUpKA

Construct a Parallel through a Point:

http://www.mathsisfun.com/geometry/construct-paranotline.html

http://www.mathopenref.com/constparallel.html

https://www.youtube.com/watch?v=uc_Wwlelbpc

Square Inscribed in a Circle:

http://www.mathopenref.com/constinsquare.html

https://www.youtube.com/watch?v=2gNfltBkbkI

Regular Hexagon Inscribed in a Circle:

http://www.mathopenref.com/constinhexagon.html

https://www.youtube.com/watch?v=USq_4tthP5Q

Equilateral Triangle Inscribed in a Circle:

http://www.zefdamen.nl/CropCircles/Constructions/triangle/intriangle_en.htm

https://www.youtube.com/watch?v=USq_4tthP5Q

Tangents to a Circle:

http://www.mathsisfun.com/geometry/construct-circletangent.html

http://www.mathopenref.com/consttangents.html