Linear Pair Conjecture


A linear pair of angles is formed when two lines intersect. Two angles are said to be linear if they are adjacent angles formed by two intersecting lines. The measure of a straight angle is 180 degrees, so a linear pair of angles must add up to 180 degrees.

The precise statement of the conjecture is:

Conjecture (Linear Pairs Conjecture ): Linear pairs of angles add up to 180 degrees.

Interactive Sketch Pad Demonstration:

Linked Activity:

Please feel free to try the activity sheet associated with this conjecture.

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