Pararallel lines and_transversal-2

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Pararallel lines and_transversal-2

  1. 1. Parallel Lines & Transversals By Victoria Miles
  2. 2. Activator Problem Solution: m<1 = 60 o . (given) m<3 = m<5 =m<7 =60 o m<2, m<4, m<6, m<8 = 120 o .
  3. 3. Perpendicular and Parallel Lines BrainPop MOVIE click here Mr. Vaugh’s flash movie click here
  4. 4. Congruent Angles
  5. 5. More Definitions <ul><li>Perpendicular lines are lines that intersect at right angles. </li></ul><ul><li>Parallel lines are lines that never intersect. </li></ul><ul><li>A transversal is a line that intersects two or more lines. </li></ul>
  6. 6. Special Types of Angles Click here to interact:
  7. 7. Vertical Angles
  8. 8. Corresponding Angles
  9. 9. Alternate Interior Angles
  10. 10. Summary <ul><li>Parallel lines are lines that never meet. </li></ul><ul><li>Perpendicular lines meet at right angles. </li></ul><ul><li>A transversal is a line that intersects 2 or more (parallel) lines. </li></ul><ul><li>Parallel lines cut by a transversal form 8 angles . </li></ul><ul><li>Pairs of angles will be either congruent or supplementary . </li></ul><ul><li>Special pairs of angles will be congruent . </li></ul><ul><ul><li>Vertical angles </li></ul></ul><ul><ul><li>Corresponding angles </li></ul></ul><ul><ul><li>Alternate Interior Angles </li></ul></ul>Interactive math dictionary
  11. 11. Your turn! Find the measure of the other angles. 105 o
  12. 12. Try this one! Solve for a, b, c, d, x, y and z x 65 o y + 20 z a - 10 b 5 c d ÷ 2
  13. 13. More special angles… <ul><li>http://www.shodor.org/interactivate/activities </li></ul><ul><li>Sources </li></ul><ul><li>http://www.mathsisfun.com </li></ul><ul><li>http://www.algebra.com </li></ul><ul><li>http://www.teachers.ash.org.au/jeather/maths/dictionary.htm l </li></ul>

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