3.1 Lines and Angles

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3.1 Lines and Angles

•  

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3.1 Lines and Angles

• Objectives
• Identify parallel, perpendicular, and skew lines.
  
• Identify the angles formed by two lines and a
  transversal.

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3.1 Vocabulary
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3.1 Vocabulary
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3.1 Parallel, Perpendicular, or Skew
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3.1 Parallel, Perpendicular, and Skew

• Identify each of the following
• (answer each one then go to the next slide to
  check your answers)
• 1.
• 2.
• 3.
• 4.

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3.1 Parallel, Perpendicular, and Skew

• Identify each of the following
• 1.
• JF or EH
• 2.
• HJ or EH or HF or GD
• 3.
• DE or GH
• 4.
• Plane DEF // Plane GHJ

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3.1 Angles

• Give an example of each angle pair.
• Corresponding angles
• Alternate Interior Angles
• Alternate Exterior Angles
• Same-side Interior Angles (Consecutive Interior)

?1 and ?5 ?4 and ?8 ?2 and ?6 ?3 and ?7
?3 and ?5 ?4 and ?6
?1 and ?7 ?2 and ?8
?3 and ?6 ?4 and ?5
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3.1 Angles and Transversals
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3.1 Transversals and Angle Pairs

• Identify the transversal and angle pairs.

A. ?1 and ?3
transversal l corr. ?s
B. ?2 and ?6
transversal n alt. int ?s
C. ?4 and ?6
transversal m alt. ext ?s