Section 3-1: Properties of Parallel Lines

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Presentation transcript:

Section 3-1: Properties of Parallel Lines Warm Up Same Side Interior Angles Name a pair of complementary angles Name a pair of supplementary angles 4 3 5 1 2 Transversal On parallel lines, corresponding angles are___________________ Definition: Same Side Exterior Angles Alternate Interior Angles On parallel lines, same side interior angles are___________________ Corresponding Angles On parallel lines, alternate interior angles are___________________ Alternate Exterior Angles On parallel lines, same side exterior angles are___________________ This is the symbol that lets us know that lines are parallel to each other. On parallel lines, alternate exterior angles are___________________

What kind of angles are <1 & <2? 7. 1. 2. 3. 4. 6. 5. 1 2 1 2 1 1 2 2 2 2 1 2 Identify each pair of angles. 1. < 1 & < 2 _____________________ 2. < 2 & < 3 _____________________ 3. < 3 & < 4 _____________________ 4. < 4 & < 5 _____________________ 5. < 5 & < 6 _____________________ 6. < 4 & < 7 _____________________ 7. < 3 & < 5 _____________________ 8. < 5 & < 8 _____________________ 1 2 3 8 5 4 7 6 Find the value of <1 & <2. 3. 2. 42° 97° 1. 1 1 103° 2 1 43° 5. 1 2 2 4. 111° 52° 2 1 47° 2 Solve for x. 1. 2. 3. 4. 7x-9 22x+17 8x+13 5x+16 9x+25 15x-11 4x+21 7x+20

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