This write up is for Assignment 5.

Geometer's Sketchpad version 4.0 enables GSP scripts to be saved as a Tool within each individual sketch. As in previous versions of GSP, examinations, investigations, and explorations are within a click of the mouse.

- Centroid
- Orthocenter
- Circumcenter
- Circumcircle
- Incenter
- Incircle
- Medial triangle
- Orthocenter, Mid-segment triangle
- Orthic triangle
- Pedal triangle
- Center of Nine point circle
- Nine Point Circle
- Trisecting a line segment
- Equilateral triangle, given a side
- Square, given a side
- Isosceles triangle, given base and altitude
- Triangle Centers (H, G, C, and I)
- Triangle Centers with Euler Line
- Locus of vertex of a fixed angle that subtends a fixed segment
- Divide a segment AB into two parts that form a golden ratio
- Pentagon, given a radius
- Pentagon, given a side
- Hexagon, given a side
- Octagon, given a side
- Common External Tangents to two given circles
- Common Internal Tangents to two given circles