Geometry Vocab Review

Line

• Has AT LEAST two points and 
  extends infinitely.  Normally 
  has two arrows at the end.
• Flat Surface.  Has AT LEAST
  3 non-collinear points.
• A place.  A dot on the
  coordinate plane.

Points on the same line

• Line Segment
• Endpoint
• Collinear

Ray

• Has one initial point and
  continues in one direction
• What starts and stops a line
  segment.
• Part of a line. Has two
  endpoints.

• Supplementary Angles
• Complementary Angles
• Obtuse Angles

Divides a line segment in half.

• Segment Bisector
• Angle Bisector
• Linear Pair

• Complimentary Angles
• Acute Angles
• Supplementary Angles

A pair of adjacent angles formed when two lines intersect. Add up to 180 degrees.

• Straight Angle
• Right Angle
• Linear Pair

Angles 1 and 3 are....

• Adjacent Angles
• Supplementary Angles
• Vertical Angles

Tags

CCSS.HSG.CO.C.9

A line that splits an angle into
two congruent angles.

• Segment Bisector
• Angle Bisector
• Midpoint

Tags

CCSS.HSG.CO.D.12

2 angles that share a common vertex, a common side and no common interior points. 

• Vertical Angles
• Supplementary Angles
• Adjacent Angles