Math Vocab Ch 1.txt

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Math Vocab Ch 1.txt
2010-08-30 21:12:37

Geometry Chapter one vocab
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  1. Acute Angle
    Less than 90 degrees and greater than 0 degrees.
  2. Angle
    A figure formed by two rays with a common endpoint.
  3. Angle Bisector
    A ray that divides an angle into two congruent angles
  4. Between
    A point B that is between points A and C when they are all on the same line and AB+BC = AC
  5. Bisect
    To divide into two equal parts
  6. Collinear
    Points that lie on the same line
  7. Coplanar
    Points that lie on the same plane
  8. Coordinate
    The position of a point on a line
  9. Distance
    The absolute value of the difference between the coordinates
  10. Endpoint
    A point at one end of a segment / the starting point of a ray
  11. Length
    The distance between A and B
  12. Midpoint
    The point that divides a line into two equal segments
  13. Obtuse Angle
    Greater than 90 degrees and less than 180 degrees
  14. Postulate
    A statement accepted as true without proof; ex: Hayley is the awesomest person in the world, p;eriod.
  15. Ray
    Starts at an endpoint and extends in one direction
  16. Opposite Rays
    Two rays with a common endpoint that form a line.
  17. Right angle
    A 90-degree angle.
  18. Segment
    The part of a line consisting of two points and all points inbetween
  19. Segment Bisector
    Any ray, segment, or line that intersects a segment at its midpoint
  20. Straight Angle
    A 180-degree angle
  21. Vertex
    The common endpoint of two sides