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Section 3.1 Parallel, Skew and Transversals

Section 3.1 Parallel, Skew and Transversals. Parallel - when planes do not intersect, they are parallel. t he top and bottom of this cube are parallel Pa rallel lines - when lines are in the same plane and do not intersect, the lines are parallel

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Section 3.1 Parallel, Skew and Transversals

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  1. Section 3.1 Parallel, Skew and Transversals Parallel - when planes do not intersect, they are parallel. the top and bottom of this cube are parallel Parallel lines - when lines are in the same plane and do not intersect, the lines are parallel Skew - when lines are NOT IN THE SAME PLANE and do not intersect, they are skew. lines l and m are skew l m

  2. Transversal A line that intersects 2 or more lines in a plane at different points. 8 angles are formed by a transversal and 2 lines. t is the transversal of l and m These angles and pairs of them, have special names: t Interior angles - there are 4 of these Exterior angles - there are 4 of these Consecutive interior angles - 2 pairs of these Alternate interior angles - 2 pairs of these Alternate exterior angles - 2 pairs of these Corresponding angles - 4 pairs of these l 4 3 1 2 m 5 6 7 8

  3. c is the transversal of lines a and b

  4. Which line is the transversal? t

  5. Homework: PRACTICE WORKBOOK SECTION 3-1 (pg 14) #1-10

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