Intro to Algebra- Geometry Terms

Wendy B.
50 words 37 learners

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Full list of words from this list:

words only definitions & notes
  1. point
    a geometric element that has position but no extension
  2. line
    a spatial location defined by a unidimensional extent
  3. angle
    the space between two lines or planes that intersect
  4. straight angle
    an angle of 180 degrees
  5. ray
    (mathematics) a straight line extending from a point
  6. plane
    an unbounded two-dimensional shape
  7. vertex
    the point of intersection of lines
  8. degree
    a measure for arcs and angles
  9. right angle
    the 90 degree angle between two perpendicular lines
  10. complementary angles
    two angles whose sum is a right angle
  11. supplementary
    functioning in a supporting capacity
    Two angle whose sum is equal to 180 degrees.
  12. vertical angle
    either of two equal and opposite angles formed by the intersection of two straight lines
  13. perpendicular
    intersecting at or forming right angles
  14. parallel
    being everywhere equidistant and not intersecting
  15. corresponding
    similar especially in position or purpose
    corresponding angles match to one another. They are congruent.
  16. alternate
    go back and forth
  17. interior angle
    the angle inside two adjacent sides of a polygon
  18. exterior angle
    the supplement of an interior angle of a polygon
  19. acute angle
    an angle less than 90 degrees but more than 0 degrees
  20. right angle
    the 90 degree angle between two perpendicular lines
  21. obtuse angle
    an angle between 90 and 180 degrees
  22. acute triangle
    a triangle whose interior angles are all acute
  23. right triangle
    a triangle with one right angle
  24. obtuse triangle
    a triangle that contains an obtuse interior angle
  25. equilateral triangle
    a three-sided regular polygon
  26. isosceles triangle
    a triangle with two equal sides
  27. scalene triangle
    a triangle with no two sides of equal length
  28. trapezoid
    a quadrilateral with one pair of parallel sides
  29. parallelogram
    a quadrilateral whose opposite sides are parallel and equal
  30. rhombus
    a parallelogram with four equal sides
  31. rectangle
    a parallelogram with four right angles
  32. square
    a polygon with four equal sides and four right angles
  33. polygon
    a closed plane figure bounded by straight sides
  34. regular polygon
    a polygon with all sides and all angles equal
  35. pentagon
    a shape with five angles and five sides
  36. hexagon
    a six-sided polygon
  37. heptagon
    a seven-sided polygon
  38. octagon
    a shape with eight angles and eight sides
  39. congruent
    corresponding in character or kind
  40. corresponding
    similar especially in position or purpose
  41. reflection
    the phenomenon of a wave being thrown back from a surface
  42. symmetry
    balance among the parts of something
  43. transformation
    the act of changing in form or shape or appearance
  44. image
    a visual representation produced on a surface
  45. translation
    the act of changing in form or shape or appearance
  46. coordinate
    a number that identifies a position relative to an axis
  47. rotation
    the act of turning as if on an axis
  48. scale factor
    a number used as a multiplier in scaling
  49. regular polygon
    a polygon with all sides and all angles equal
  50. dilation
    the act of making an opening wider
Created on Mon Apr 22 13:00:57 EDT 2013

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