Write-up
# 5

###
Scripts for Various
Geometer's SketchPad Constructions

###
by

###
Holly Anthony

###
Fall 2001

###
The following is a list of GSP
scripts that I believe are most useful.

###
(Note: you must have Geometer's
SketchPad installed on your computer to view the following links.)

###

###
To play the following scripts,
you must have Geometer's SketchPad open; then you should construct the
given points, lines, etc. listed by each script below. These 'given' constructions
should all be selected/highlighted before you play the script.

##
**Triangle
Centers and Related Constructions**

###
Centroid
(given three vertices of a triangle)

###
Orthocenter
(given three vertices of a triangle)

###
Circumcenter
(given three vertices of a triangle)

###
Incenter
(given three vertices of a triangle)

###
Circumcircle
(given three vertices of a triangle)

###
Incircle
(given three vertices of a triangle)

###
Excircle
(given three vertices of a triangle and an extra point on an extended side)

###
Medial
Triangle (given three vertices of a triangle)

###
Orthic
Triangle (given three vertices of a triangle)

###
Pedal
Triangle (given three vertices of a triangle and an extra point)

###
Nine
Point Circle (given three vertices of a triangle)

###
Euler
Line (given three vertices of a triangle)

##
**Polygons**

###
Square
(given the endpoints of a side)

###
Pentagon
(given the endpoints of a side)

###
Pentagon
(given the endpoints of a radius)

###
Hexagon
(given the endpoints of a side)

###
Octagon
(given the endpoints of a side)

###
Decagon
(given the endpoints of a radius)

###
Dodecagon
(given the endpoints of a side)

##
**Segments**

###
Golden
Ratio: divide a Segment AB into two parts that form the Golden Ratio.

##
**Other
Constructions**

###
Isosceles
Triangle (given the endpoints of the base and the endpoints of the
altitude)

###
Parabola
(given the endpoints of its directrix and its focus)

###

###