- Centroid of a Triangle
- Orthocenter of a Triangle
- Circumcenter of a Triangle
- Circumcircle of a Triangle
- Incenter of a Triangle
- Incircle of a Triangle
- Medial triangle of a Triangle
- Orthic triangle
- Pedal Triangle
- Center of a Nine Point Circle
- Nine Point Circle
- Triangle Centers (H, G, C, and I)
- Triangle Centers with Euler Line
- Regular Pentagon (given a radius)
- Regular Pentagon (given a side)
- Regular Hexagon (given a side)
- Regular Heagon (given a radius)
- Regular Hexagon (using a slider)
- Regular Octagon (given a side)
- Regular Octagon (given a radius)
- Square (given a side)
- Equilateral Triangle (given a side)
- Isosceles Triangle (given base and altitude)
- Trisecting a line segment
- Divide a segment AB into two parts that form a golden ratio
- Golden Rectangle
- Golden Spiral