Vertical ,Adjacent Angle and Linear Pair
Adjacent angles are two angles that share a common vertex and a common side, but do not overlap.
When two lines intersect, they form four pairs of adjacent angles.
The sum of adjacent angles at intersecting lines is .
Linear Pair:
A special case of adjacent angles is a linear pair. A linear pair is formed when two adjacent angles add up to 180 degrees. In other words, they form a straight line.
Move Points A, B, C, D to alter the angles formed at the intersection.
1. Identify Vertical Angles. What relationship exist between pairs of vertical angles?
2. Identify Linear Pairs. What relationship exist between linear pairs?
3. Identify Adjacent Angles. What relationship exist between adjacent angles?
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