This is a prototype of JavaSketchpad, a World-Wide-Web component of The Geometer's Sketchpad. Copyright ©1990-1998 by Key Curriculum Press, Inc. All rights reserved. Portions of this work were funded by the National Science Foundation (awards DMI 9561674 & 9623018).


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Angle 1: Angle 2: Sum of the angles:

• Drag the point B to change the measures of the linear pair. (The linear pair measured here are the pink and blue angles) • What happens to their sum?

The sum of the measures of a linear pair of angles is 180 degrees

Linear Pair Conjecture: