Circle Theorems

Recent changes
Table of contents
Links to this page

It seems that there is a collection of "Circle Theorems" that get taught in schools maths. These are:

That makes seven "Theorems".

The first and second follow from symmetry. The third is quite tricky to find a proof of, and could give a real "Aha!" moment. The fourth is a simple deduction from the third, and is known as "Thale sTheorem".

I wrote a blog entry about that.

The remaining three I need to think some more about - I'm not even sure what 5 and 7 mean.


There were no headings
in the main text so there
is no table of contents.

Links on this page

Site hosted by Colin and Rachel Wright:
  • Maths, Design, Juggling, Computing,
  • Embroidery, Proof-reading,
  • and other clever stuff.

Suggest a change ( <-- What does this mean?) / Send me email
Front Page / All pages by date / Site overview / Top of page

Universally Browser Friendly     Quotation from
Tim Berners-Lee
    Valid HTML 3.2!