"theorem" is referenced in the pages listed below.
From two points on a circle, the central angle is twice the inscribed angle
Any side of a triangle is always shorter than the sum of the other two sides.
A triangle cannot be constructed from three line segments if any of them is longer than the sum of the other two.
This page explores the Fundamental Theorem of Calculus. Interactive calculus applet.
The definition and characteristics of the exterior angles of triangles
A biography of Thales. A short description of his life and contributions to the study of geometry. Links to other resources.
A biography of Pythagoras of Samos. A short description of his life and contributions to the study of geometry, including Pythagoras' Theorem. Links to other resources.
Definition of Thales theorem - the diameter of a circle always subtends a right angle to any point on the circle.
This page explores the Second Fundamental Theorem of Calculus. Interactive calculus applet.
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