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1-5 Exploring Angle Pairs Problem 1: Identifying Angle Pairs Use the diagram provided. Is the statement true? Explain. Problem 1: Identifying Angle Pairs Use the diagram provided. Is the statement true? Explain. Problem 1: Identifying Angle Pairs Use the diagram provided. Is the statement true? Explain. Problem 2: Making Conclusions from a Diagram Linear Pair: a pare of adjacent angles whose non-common sides are opposite rays. Angles of a linear pair form a straight line Postulate 1-9: Linear Pair Postulate: If two angles form a linear pair, then they are supplementary Problem 3: Finding Missing Angle Measures Angle bisector: a ray that divides an angle into two congruent angles Problem 4: Using an Angle Bisector to Find Angle Measures