This site provides an introduction to similar triangles:
https://www.mathsisfun.com/geometry/triangles-similar.html
This interactive site demonstrates the similar triangle theorem:
http://www.mathwarehouse.com/geometry/similar/triangles/similar-triangle-theorems.php… See the whole entry
This site has practice with classifying triangles.
http://www.onlinemathlearning.com/types-of-triangles.html
This site investigates the exterior angles of a triangle:
http://www.freemathhelp.com/feliz-exterior-triangle.html… See the whole entry
An interesting introduction and discussion of angles is found on the site: http://www.mathsisfun.com/angles.html… See the whole entry
Euclid’s Elements can be found at:
http://aleph0.clarku.edu/~djoyce/java/elements/elements.html
These sites give some great examples of symmetry.
http://www.mcescher.com/?s=symmetry
Problem 1 presents an optical illusion. If you like this sort of problem you might enjoy checking out this site.
http://www.billiardworld.com/puzzles.html
You might be … See the whole entry
This is one of the best all around sites that I have found. It is titled “The MacTutor History of Mathematics Archive.”
http://www-history.mcs.st-and.ac.uk/~history
This is an award-winning site that links to all sorts of mathematics information.
https://mathshistory.st-andrews.ac.uk/HistTopics/History_overview… See the whole entry
This is one of the best all around sites that I have found. It is titled “The MacTutor History of Mathematics Archive.”
http://www-history.mcs.st-and.ac.uk/~history
This is an award-winning site that links to all sorts of mathematics information.
https://mathshistory.st-andrews.ac.uk/HistTopics/History_overview
Benjamin Bannecker:
https://mathshistory.st-andrews.ac.uk/Biographies/Banneker.html… See the whole entry
This is one of the best all around sites that I have found. It is titled “The MacTutor History of Mathematics Archive.”
http://www-history.mcs.st-and.ac.uk/~history
This is an award-winning site that links to all sorts of mathematics information.
https://mathshistory.st-andrews.ac.uk/HistTopics/History_overview
This is one of the best all around sites that I have found. It is titled “The MacTutor History of Mathematics Archive.”
http://www-history.mcs.st-and.ac.uk/~history
This is an award-winning site that links to all sorts of mathematics information.
https://mathshistory.st-andrews.ac.uk/HistTopics/History_overview
This is one of the best all around sites that I have found. It is titled “The MacTutor History of Mathematics Archive.”
http://www-history.mcs.st-and.ac.uk/~history
This is an award-winning site that links to all sorts of mathematics information.
https://mathshistory.st-andrews.ac.uk/HistTopics/History_overview
Here are the … See the whole entry
This is one of the best all around sites that I have found. It is titled “The MacTutor History of
Mathematics Archive.”
http://www-history.mcs.st-and.ac.uk/~history/
This is an award-winning site that links to all sorts of mathematics information.
http://archives.math.utk.edu/
Euclid:https://mathshistory.st-andrews.ac.uk/Biographies/Euclid.html… See the whole entry