Chapter 3 Parallel and Perpendicular Lines

Get Ready!

• Lesson 1-5 Identifying Angle Pairs

  Identify all pairs of each type of angles in the diagram.

  
  Image Long Description

  1. linear pair
  2. complementary angles
  3. vertical angles
  4. supplementary angles

• Lesson 2-5 Justifying Statements

  Name the property that justifies each statement.

  5. If 3 x = 6 , 3 x equals 6 comma  then x = 2 . x equals 2 .
  6. If ∠ 1 ≅ ∠ 2 angle 1 approximately equal to angle 2  and ∠ 2 ≅ ∠ 3 , angle 2 approximately equal to angle 3 comma  then ∠ 1 ≅ ∠ 3 . angle 1 approximately equal to angle 3 .

• Skills Handbook, p. 834 Solving Equations

  Algebra Solve each equation.

  7. 3 x + 11 = 7 x − 5 3 x plus . 11 equals 7 x minus 5
  8. ( x − 4 ) + 52 = 109 open x minus 4 close plus . 52 equals 109
  9. ( 2 x + 5 ) + ( 3 x − 10 ) = 70 open 2 x plus 5 . close , plus open , 3 x minus 10 close , equals 70

• Lesson 1-7 Finding Distances in the Coordinate Plane

  Find the distance between the points.

  10. (1, 3) and (5, 0)
  11. ( − 4 , 2 ) open negative 4 comma 2 close  and (4, 4)
  12. ( 3 , − 1 ) open 3 comma negative 1 close  and ( 7 , − 2 ) open 7 comma negative 2 close

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