Geometry Words

Emily C.
68 words relating to Geometry
68 words 840 learners

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Full list of words from this list:

words only definitions & notes
  1. acute angle
    an angle less than 90 degrees but more than 0 degrees
  2. acute triangle
    a triangle whose interior angles are all acute
  3. altitude
    elevation above sea level or above the earth's surface
  4. angle
    the space between two lines or planes that intersect
  5. arc
    a continuous portion of a circle
  6. center
    an area that is in the middle of some larger region
  7. central
    in or near an inner area
  8. chord
    a combination of three or more notes that blend harmoniously
  9. circle
    a plane curve with every point equidistant from the center
  10. circumference
    the length of the closed curve of a circle
  11. complementary angles
    two angles whose sum is a right angle
  12. cone
    a shape with a circular base and sides tapering to a point
  13. congruent
    corresponding in character or kind
  14. coordinate
    of equal importance, rank, or degree
  15. coplanar
    lying in the same plane
  16. cosine
    ratio of the adjacent side to the hypotenuse of a right-angled triangle
  17. cylinder
    a surface generated by rotating a line around a fixed line
  18. degree
    a specific identifiable position in a continuum or series
  19. diameter
    the length of a straight line through the center of a circle
  20. distance
    the property created by the space between two objects
  21. equiangular triangle
    a three-sided regular polygon
  22. equilateral triangle
    a three-sided regular polygon
  23. equivalent
    being essentially comparable to something
  24. exterior angle
    the supplement of an interior angle of a polygon
  25. geometric mean
    the mean of n numbers expressed as the n-th root of their product
  26. inscribed
    written on or in a surface
  27. isosceles triangle
    a triangle with two equal sides
  28. measure
    determine the dimensions of something or somebody
  29. median
    relating to or situated in or extending toward the middle
  30. midpoint
    a point equidistant from the ends of a line or the extremities of a figure
  31. obtuse angle
    an angle between 90 and 180 degrees
  32. obtuse triangle
    a triangle that contains an obtuse interior angle
  33. parallel
    being everywhere equidistant and not intersecting
  34. parallelogram
    a quadrilateral whose opposite sides are parallel and equal
  35. perimeter
    a line enclosing a plane area
  36. polygon
    a closed plane figure bounded by straight sides
  37. polyhedron
    a solid figure bounded by plane polygons or faces
  38. prism
    a polyhedron with two congruent and parallel faces
  39. proportion
    relation with respect to comparative quantity or magnitude
  40. pyramid
    a polyhedron having a polygonal base and triangular sides
  41. quadrilateral
    a four-sided polygon
  42. radius
    a straight line from the center to the perimeter of a circle
  43. ratio
    relation with respect to comparative quantity or magnitude
  44. ray
    a group of nearly parallel lines of electromagnetic radiation
  45. rectangle
    a parallelogram with four right angles
  46. rectangular
    having four right angles
  47. regular polygon
    a polygon with all sides and all angles equal
  48. rhombus
    a parallelogram with four equal sides
  49. right angle
    the 90 degree angle between two perpendicular lines
  50. right triangle
    a triangle with one right angle
  51. scalene triangle
    a triangle with no two sides of equal length
  52. secant
    a straight line that intersects a curve at two or more points
  53. sector
    a particular aspect of life or activity
  54. segment
    one of several parts that fit with others to make a whole
  55. similarity
    the quality of being alike
  56. sine
    ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle
  57. slope
    be at an angle
  58. sphere
    a round three-dimensional closed surface
  59. square
    a polygon with four equal sides and four right angles
  60. sum
    a quantity obtained by the addition of a group of numbers
  61. surface area
    the extent of a 2-dimensional surface enclosed within a boundary
  62. tangent
    a line that touches a curve at only one point
  63. transformation
    the act of changing in form or shape or appearance
  64. transversal
    extending or lying across
  65. trapezoid
    a quadrilateral with one pair of parallel sides
  66. triangle
    a three-sided polygon
  67. unequal
    poorly balanced or matched in quantity or value or measure
  68. vertical angle
    either of two equal and opposite angles formed by the intersection of two straight lines
Created on Fri Apr 06 08:25:47 EDT 2012 (updated Mon May 07 11:57:21 EDT 2012)

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