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Transversals. Math 8: Unit 2 Mrs. Tyrpak. Definition s. Parallel lines – are 2 lines in a plane that never intersect Perpendicular lines – are 2 lines in a plane that intersect at 90 degree angles Transversal – a line that intersects 2 or more lines.
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Transversals Math 8: Unit 2 Mrs. Tyrpak
Definitions Parallel lines – are 2 lines in a plane that never intersect Perpendicular lines – are 2 lines in a plane that intersect at 90 degree angles Transversal – a line that intersects 2 or more lines
If 2 parallel lines are intersected by a transversal then… • Alternate interior angles are congruent • Alternate exterior angles are congruent • Corresponding angles are congruent
Find . 68 t r s
Think about it… What would we know if a transversal was perpendicular to 2 parallel lines?
List all vertical angles. t r s What do you remember about vertical angles? _______________________
Thanks for your attention! Don’t forget to complete your practice and application worksheets. Remember geometry is VERY visual, so whenever possible sketch a picture of what is going on and label EVERYTHING you know