Ch. 3 Perpendicular and Parallel Lines

3.1 Lines and Angles

At the end of this section, you will be able to:

• Identify relationships between lines.
  
• Identify angles formed by transversals.
  
  
  

3.2 Proof and Perpendicular Lines

At the end of this section, you will be able to:

• Write different types of proof.
  
• Prove results about perpendicular lines.
  
  
  

3.3 Parallel Lines and Transversals

At the end of this section, you will be able to:

• Prove and use results about parallel lines and transversals.
  
• Use properties of parallel lines to solve real-life problems.
  
  
  

3.4 Proving Lines Are Parallel

At the end of this section, you will be able to:

• Prove that two lines are parallel.
  
• Use properties of parallel lines to solve real-life problems.
  
  
  

3.5 Using Properties of Parallel Lines

At the end of this section, you will be able to:

• Use properties of parallel lines in real-life situations.
  
• Construct parallel lines using straightedge and compass.
  
  
  

3.6 Parallel Lines in the Coordinate Plane

At the end of this section, you will be able to:

• Find slopes of lines and use slope to identify parallel lines in a coordinate plane.
  
• Write equations of parallel lines in a coordinate plane.
  
  
  

3.7 Perpendicular Lines in the Coordinate Plane

At the end of this section, you will be able to:

• Use slope to identify perpendicular lines in a coordinate plane.
  
• Write equations of perpendicular lines.
  
  
  

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