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Test your basic knowledge |
GRE Math Strategies
Start Test
Study First
Subjects
:
gre
,
math
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. M=number of favorable ways n= total number of ways (two events occurring is the prob of the first times the prob of the second)
if the last digit of the number is 0 -2 -4 -6 -8
-y
probability
central angle
2. Volume= e(edge)³ surface area= 6e²
rectangular solid
b is the y-intercept
cube
x²+ 2xy+y²
3. 1. determine a rough approximation of the square root of the number. 2. divide the number by all the primes that are less than the approx square root. If the number is not divisible by ANY of the these primes - then it is prime. If it IS divisible -
x²-y²
the third side
a
determining if a number is prime
4. x>0 and y>0 or x<0 and y<0
properties of a square
xy>0
always positive or zero
no solutions
5. What % of m is n
(x/100)m= n
similar triangles
right triangle
the percent of increase
6. V3
1.7
x>y
the third side
a side< b side
7. Diagonal= sv2
diagonal of a square
the last digit is 0
then side b > side a
midpoint of a line segment joining 2 parts
8. The whole equals
the sum of parts
x - y
x>y
triangle or straight line
9. Diagonals are perpendicular to each other and bisect the vertex angles 1.each pair of opposite sides are equal 2. the diagonals bisect eachother 3. the opposite angles are equal 4. one diagonal divides it into two congruent triangles and two diagonal
itself
x and y
distributive axiom
properties of a rhombus
10. All sides are equal and all of whose angles are equal. 1. can be inscribed in a circle and can be circumscribed about another circle. 2. each angle is equal to the sum of the angles divided by the number of sides 180(n-2)°/n.
n= mx/100
probability
regular polygon properties
rectangular solid
11. Parallel and never intersect - they have no solution at all - they are parallel with the same slope
tangent
inconsistent lines
trapezoid
opposite the greatest side
12. Area = ?r² circumference(perimeter)= 2?r
y intercept
area of a triangle
and
circle
13. M= y2-y1/x2-x1
inscribed angle
the percent of decrease
semicircle
slope of a line joining two points
14. C times as old as john
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on line
183
15. x/100
supplementary angles
c x (john'S age)
equilateral triangle
x percent
16. B>c+ d>e
1
a+b+d=c+d
combinations
b+d>c+e
17. 1-1-1 (60-60-60)
one solution
360 degrees
equilateral triangle
straight angle
18. Any integer is divisible by 3 - if
rectangle
the sum of its digits is divisible by 3
x>y
determining if a number is prime
19. The sum of any two sides of a triangle is greater than
angle bisector
the third side
vertical angles
a set
20. Sin 60°
v3/2 or .87
null set
equals
right triangle
21. If two lines are perpendicular - the slope of one is the
negative reciprocal of the other
square
acute angle
medians of a triangle
22. xw> yz
equal
inscribed angle
x>y>0 and w>z>0
a side< b side
23. (sum of individual quantities or measures/ total number of quantities or measures)
even
parallelogram
average
combinations
24. 1/an
y-x
right triangle
circle
a?n
25. (amount of increase/original amount) x 100
the percent of increase
relation
odd
x>y>0 and w>z>0
26. Angles that equal 180 degrees
the square of x
then side b > side a
supplementary angles
itself
27. In transversals
similar triangles
approx sums
all acute angles are equal and all obtuse angles are equal
x + y
28. Intersect at only one point - the point is the only solution to the pair of equations
range of a relation
a?n
x+y/xy
consistent lines
29. Is - as - was - has - cost
permutations
all acute angles are equal and all obtuse angles are equal
x>y
equals
30. If an equation can be put into the form y= mx +b - then
b is the y-intercept
xy< 0
similar triangles
vertical angles
31. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
pythagorean theorem
expression of an even number
when finding a solution set
the percent of decrease
32. xn<0 if n is odd and xn>0 if n is even
1.4
negative reciprocal of the other
set
x<0
33. 180°
inverse of a relation
straight angle
equal to the slope of the other
the last digit is 0
34. Wx<wy
find the intersection of two sets
the square of x
parallelogram
w<0 and x>y
35. x younger than y
(x/100)m= n
x - y
similar triangles
then side b > side a
36. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
or
3.16
v(x2-x1)²+ (y2-y1)²
sphere
37. 2k + 1
expression of an odd number
diagonal of a square
equal to the slope of the other
x>y>0 and w>z>0
38. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
rectangular solid
commutative axiom of addition and multiplication
find the intersection of two sets
regular polygon properties
39. The distance between two parallel lines or from a point to a line always means
x>y and y>z
360 degrees
then side b > side a
the perpendicular distance
40. 2k
expression of an even number
standard deviation
the sum of parts
the percent of increase
41. Wx>wy
sphere
x<0
approx square roots
w>0 and x>y
42. All odd numbers end in the digits of
consistent lines
x is less than y
1 - 3 - 5 - 7 - 9
vertical angles
43. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
sphere
circle
cylinder
equal
44. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
one solution
3.16
relation
hemisphere
45. 180°
right triangle
angle inscribed in semicircle
implies
triangle or straight line
46. Area= s² perimeter= 4s
angle
equilateral triangle
x + y
square
47. x>z
y-x
x>y and y>z
1.4
the third side
48. If two lines are parallel - the slope of one is
obtuse angle
equal to the sum of the measures of the remote exterior angles
equal to the slope of the other
(y-x/x)100
49. ?
belongs to
xy< 0
v2/2 or .71
or
50. Angles directly across each other are equal
a side< b side
vertical angles
n percent less than x
equal to the sum of the measures of the remote exterior angles