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Dynamic Geometry Sketches Updated, January 2011
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Michael de Villiers
Feb 1, 2011, 7:26:11 AM2/1/11
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Just to announce for those interested that my Dynamic Geometry Sketches site at http://math.kennesaw.edu/~mdevilli/JavaGSPLinks.htm has been updated with the following (new & revised) sketches:
1) De Villiers points & Hyperbola of a triangle (updated)
2) A generalization of Neuberg & Simson line (updated)
3) Interior Angle Sum of Polygons: A general formula to include crossed ones (new)
4) Some unproved conjectures (updated)
and the Student Explorations section with:
1) Cyclic quadrilateral rectangle result (new)
2) Interior Angle Sum of Polygons: A general formula to include crossed ones (new), with introductory Logo (Turtle Geometry) activity
3) Quadrilateral Inequality involving Perimeter & Diagonals (updated)
4) Added links to 'Mathematical Digest' and 'School Maths'
1) De Villiers points & Hyperbola of a triangle (updated)
2) A generalization of Neuberg & Simson line (updated)
3) Interior Angle Sum of Polygons: A general formula to include crossed ones (new)
4) Some unproved conjectures (updated)
and the Student Explorations section with:
1) Cyclic quadrilateral rectangle result (new)
2) Interior Angle Sum of Polygons: A general formula to include crossed ones (new), with introductory Logo (Turtle Geometry) activity
3) Quadrilateral Inequality involving Perimeter & Diagonals (updated)
4) Added links to 'Mathematical Digest' and 'School Maths'
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