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• Segment Bisector


  A segment, ray, line or plane that intersects a segment at its midpoint
• Angle


  Ls formed by two noncollinear rays that have a common end point
• Kinds of Angles


  • Acute Angle (measure less than 90°)
  • Right Angle (90°)
  • Obtuse Angle (more than 90°)
• Supplementary angles have a sum of 180°
• Complementary angles have a sum of 90°
• Adjacent Angles


  Two coplanar angles that share a common side
• Vertical Angles


  Nonadjacent angles formed by two intersecting lines
• Angles at a point


  All angles that have the same vertex around a point
• Shew Lines


  • Lines that do not intersect
  • Non coplanar - do not line on the same plane
• Parallel Lines are lines that are coplanar
• Oblique Lines


  • Lines that are intersect but are not perpendicular
• Parallel Lines - lines that are coplanar
• Oblique Lines - do not intersect, not parallels
• Rays and segments are also describes as perpendicular, oblique, parallel or skew