Thales of Miletus is one of the first acknowledged Greek philosophers. An engineer by trade, he was a brilliant mathematician, scientist, and philosopher. Thales developed five theorems of geometry, which are some of the basic theorems we still teach in high school geometry today:
Quote: “Time is the wisest of all things that are; for it brings everything to light.”
- A circle is bisected by any diameter.
- The base angles of an isosceles triangle are equal.
- The angles between two intersecting straight lines are equal.
- Two triangles are congruent if they have two angles and one side equal.
- An angle in a semicircle is a right angle.
Quote: “Time is the wisest of all things that are; for it brings everything to light.”
Sources:
"Thales." Wikipedia. Wikimedia Foundation, 27 June 2014. Web. 29 June 2014. <http://en.wikipedia.org/wiki/Thales>.
"Thales of Miletus." Thales Biography. University of St. Andrews Scotland, n.d. Web. 29 June 2014. <http://www-history.mcs.st-and.ac.uk/Biographies/Thales.html>
"Thales." Wikipedia. Wikimedia Foundation, 27 June 2014. Web. 29 June 2014. <http://en.wikipedia.org/wiki/Thales>.
"Thales of Miletus." Thales Biography. University of St. Andrews Scotland, n.d. Web. 29 June 2014. <http://www-history.mcs.st-and.ac.uk/Biographies/Thales.html>