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Lines and Angles

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  • Draw line segment LM
  • What type of lines are these?
    parallel lines
  • Draw straight angle NOP
  • What type of lines never touch?
    parallel lines
  • What type of angle is this?
    acute angle
  • What type of angle is this?
    acute angle
  • What is the angle measure?
    75 degrees
  • What is the angle measure?
    50 degrees
  • What is the angle measure?
    70 degrees
  • What type of angle is this?
    straight angle
  • What type of lines are these?
    perpendicular lines
  • What type of angle is this?
    obtuse angle
  • What is a section of line with a start and end point called?
    line segment
  • Draw obtuse angle XYZ
  • What type of angle is this?
    right angle
  • Draw right angle ABC
  • Draw acute angle QRS
  • What type of lines are these?
    intersecting lines
  • Draw line HI
  • What is the angle measure?
    60 degrees
  • What type of lines cross to make right angles?
    perpendicular lines
  • What type of angle is this?
    right angle
  • What goes on forever in both directions?
    line
  • Draw ray AB
  • What is part of a line that has a start point but no end point?
    ray
  • What is the angle measure?
    140 degrees
  • Draw point W
  • What type of angle is this?
    obtuse angle
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