GRE MATH

Card Set Information

Author:
ceemlo
ID:
263424
Filename:
GRE MATH
Updated:
2014-02-23 02:07:44
Tags:
GRE
Folders:

Description:
GRE
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user ceemlo on FreezingBlue Flashcards. What would you like to do?


  1. The 3 angles in a triangle add up to?
    180 degrees
  2. The 4 angles inside any 4 sided figure add up to?
    360 degrees
  3. Equilateral triangles
    All sides are equal

    All angles are 60 degrees
  4. Isosceles triangles
    2 sides are equal

    2 angles are equal
  5. Perimeter of a triangle
    Add all the sides
  6. Third side rule
    The length of any one side of a triangle must be less than the sum of the other sides

    And greater than the difference between the other 2 sides
  7. Area of a triangle
    A= 1/2bh
  8. When 2 lines intersect and 4 angles are formed, the sum of these angles is?
    306
  9. How many degrees does a circle contain?
    360 degrees
  10. Vertical angles are?
    Always equal
  11. In parallel lines, the sum of any big angle and any small angle will always equal to?
    180 degrees
  12. Popular sides of right triangles
    • 3 4 5
    • 6 8 10
    • 5 12 13
  13. Perimeter of a rectangle
    Sum of its 4 sides
  14. Area of a rectangle and square
    A= bh
  15. Area of a circle
    A= πr²
  16. Circumference of a circle
    C= 2πr

    C= πd
  17. The point where the axes intersect is called?
    Origin
  18. Slope of a line equation
    y= mx+b

    • b= y-intercept
    • m= slope
    • x and y are any point on the line
  19. Slope
    Rise/Run
  20. Equation to find the length  of a diagonal inside a 3 dimensional rectangular box
    a²+b²+c²=d²

    a,b,c are the dimensions of the figure
  21. Volume of three dimensional figure
    V= A(of 2 dimensional figure) h (depth)
  22. Volume of a circular cylinder
    πr²h
  23. Surface area of a rectangular box
    Sum of the areas of all its sides
  24. Integers
    Counting numbers

    0 is an integer

    Fractions are not
  25. Factors
    Is a number that will divide evenly into the number in the question
  26. Prime numbers
    Is an integers that only has 2 factors:

    Itself and 1

    0 and 1 are not prime numbers

    2 is the only even prime number

    Prime numbers are only positive
  27. PEMDAS
    • Parenthesis
    • Exponents
    • Multiplication
    • Division
    • Addition
    • Subtraction
  28. Product
    Result in multiplication
  29. Quotient
    Result of a division
  30. Associative laws
    When you are adding or multiplying a series of numbers, you can regroup them in any way you want
  31. Multiplying with exponents

    2¹ x 2²
    You add them

  32. Multiplying with exponents and parenthesis

    (2¹)²
    You multiply them

  33. Dividing with exponents

    2³/2²
    Subtract them

  34. When GRE asks you for the √ of something
    It is asking you for the positive root only
  35. If x²=16, then GRE is asking for
    The positive and negative numbers

    x=4, x=-4
  36. √1
    1
  37. √2
    1.4
  38. √3
    1.7
  39. √4
    2
  40. x²-y²
    (x+y)(x-y)
  41. (x+y)²
    x²+2xy+y²
  42. (x-y)²
    x²-2xy+y²
  43. 2 2/3
    Multiply the denominator by the integer, then adding that number to the numerator

    8/3
  44. 1/100
    0.01

    1%
  45. 1/5
    0.2

    20%
  46. 1/3
    0.333...

    33 1/3%
  47. 1/2
    0.5

    50%
  48. 1/10
    0.1

    10%
  49. 1/4
    0.25

    25%
  50. 2/5
    0.4

    40%
  51. 3/5
    0.6

    60%
  52. 2/3
    0.6666...

    66 2/3%
  53. 4/5
    0.8

    80%
  54. 2/1
    2.0

    200%
  55. 3/4
    0.75

    75%
  56. 1/1
    1.0

    100%
  57. Symbol translation: Percent
    /100
  58. Symbol translation: is
    =
  59. Symbol translation: of, times, product
    x
  60. Symbol translation: what (or any unknown value)
    any variable (x, k, b)
  61. Percent increase/decrease
    Percent change= difference/original x 100
  62. How are ratios expressed in the GRE?
    x: y

    the ratio of x to y

    x is to y
  63. What is a proportion?
    An equivalent relationship between 2 fractions or ratios

    1/2 and 4/8
  64. Chart on how to solve average questions
  65. When you see standard deviation or normal distribution questions
  66. Chart on how to solve rate questions

What would you like to do?

Home > Flashcards > Print Preview