GRE Math

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definitions & notes only words
  1. hypotenuse
    the side of a right triangle opposite the right angle
  2. circumference
    the length of the closed curve of a circle
  3. supplementary
    functioning in a supporting capacity
  4. perimeter
    a line enclosing a plane area
  5. cone
    a shape with a circular base and sides tapering to a point
  6. cylinder
    a surface generated by rotating a line around a fixed line
  7. ellipsoid
    a surface whose plane sections are all ellipses or circles
  8. pyramid
    a polyhedron having a polygonal base and triangular sides
  9. torus
    a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle
  10. parallelogram
    a quadrilateral whose opposite sides are parallel and equal
  11. trapezoid
    a quadrilateral with one pair of parallel sides
  12. acute angle
    an angle less than 90 degrees but more than 0 degrees
  13. obtuse angle
    an angle between 90 and 180 degrees
  14. perpendicular
    intersecting at or forming right angles
  15. congruent
    corresponding in character or kind
  16. slope
    be at an angle
  17. isosceles triangle
    a triangle with two equal sides
  18. scalene triangle
    a triangle with no two sides of equal length
  19. bisect
    cut in half or cut in two
  20. Pythagorean
    of or relating to Pythagoras or his geometry
  21. equilateral triangle
    a three-sided regular polygon
  22. quadrilateral
    a four-sided polygon
  23. cube
    a three-dimensional figure with six equal squares as faces
  24. sector
    a plane figure bounded by two radii and the arc of a circle
  25. secant
    a straight line that intersects a curve at two or more points
  26. diameter
    the length of a straight line through the center of a circle
  27. inscribed
    written on or in a surface
  28. equidistant
    exactly as far from one point as from another
  29. chord
    a straight line connecting two points on a curve
  30. rectangular
    having four right angles
  31. ordinate
    the value of a coordinate on the vertical axis
  32. abscissa
    the value of a coordinate on the horizontal axis
  33. counterclockwise
    in a direction opposite to the direction in which the hands of a clock move
  34. intercept
    seize, interrupt, or stop something on its way
  35. fraction
    the quotient of two rational numbers
  36. numerator
    the dividend of a fraction
  37. denominator
    the divisor of a fraction
  38. reciprocal
    concerning each of two or more persons or things
  39. absolute value
    a real number regardless of its sign
  40. ratio
    relation with respect to comparative quantity or magnitude
  41. proportional
    having a constant ratio
  42. inverse
    turned backward in order or nature or effect
  43. pound
    16 ounces avoirdupois
  44. inch
    a unit of length equal to one-twelfth of a foot
  45. index
    a numerical scale used to compare variables with one another
  46. commutative
    independent of order; as in e.g. "a x b = b x a"
  47. cent
    a fractional monetary unit of several countries
  48. penny
    a coin worth one-hundredth of the value of the basic unit
  49. nickel
    a United States coin worth one twentieth of a dollar
  50. dime
    a United States coin worth one tenth of a dollar
  51. quarter
    United States or Canadian coin worth one fourth of a dollar
  52. revenue
    the entire amount of income before any deductions are made
  53. interest
    a fixed charge for borrowing money
  54. progression
    the act of moving forward, as toward a goal
  55. arithmetic
    mathematics dealing with numerical calculations
  56. arithmetic progression
    (mathematics) a progression in which a constant is added to each term in order to obtain the next term
  57. arithmetic mean
    the sum of the values of a random variable divided by the number of values
  58. geometric progression
    (mathematics) a progression in which each term is multiplied by a constant in order to obtain the next term
  59. consecutive
    one after the other
  60. geometric series
    a geometric progression written as a sum
  61. inclusive
    encompassing much or everything
  62. toss
    the act of flipping a coin
  63. die
    lose all bodily functions necessary to sustain life
  64. exclusive
    admitting or accepting only a particular group
  65. mutually exclusive
    unable to be true or exist at the same time
  66. deck
    a pack of 52 playing cards
  67. flip
    the act of throwing a coin
  68. straight angle
    an angle of 180 degrees
  69. four-sided
    having four sides
  70. tangent
    a line that touches a curve at only one point
  71. intersect
    meet or cross at a point; overlap
  72. proportion
    relation with respect to comparative quantity or magnitude
Created on October 8, 2012 (updated October 8, 2012)

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