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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. If the each element of the domain occurs only once as a FIRST component
negative
a relation is a function
Axioms
1.4
2. Is the set of the first components of the ordered pairs.
xy + xz
b+d>c+e
area of a triangle
domain of a relation
3. x/100
x percent
inverse of a relation
even
the sum of its digits is divisible by 9
4. When two parallel lines are crossed by a third straight line (transversal) - then
all acute angles are equal and all obtuse angles are equal
circle
1.4
the percent of increase
5. V10
the last digit is 0
perpendicular bisectors
3.16
equal angles
6. R²
diameter of circle
solution set
diameter
vertical angles
7. x(y-z)
equals
similar triangles
xy-xz
x>y>0 and w>z>0
8. (sum of individual quantities or measures/ total number of quantities or measures)
even
parallel
if the last digit of the number is 0 -2 -4 -6 -8
average
9. xn<0 if n is odd and xn>0 if n is even
0 - 2 - 4 - 6 - 8
no solutions
angle bisector
x<0
10. C²= a²+b² and angle x and y are equal to 90°
find the intersection of two sets
right triangle
hemisphere
x - y
11. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
area of a triangle
it is also divisible by 2 and 3
vertical angles
x - y
12. 1. solve the equation or inequality 2. use ONLY the solutions which satisfy the condition required - the set of all x such that x is greater than or equal to 10 R= {x: x=10}
standard deviation
belongs to
the last two digits of the number make a number that is divisible by 4
when finding a solution set
13. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
v(x2-x1)²+ (y2-y1)²
any variable
find the intersection of two sets
properties of parallelograms
14. A closed plane whose sides are straight lines. The sum of the angles is equal to 180(n-2) - where n is the number of sides.
right triangle
equilateral triangle
a set
polygon
15. If an equation can be put into the form y= mx +b - then
area of a triangle
x²+ 2xy+y²
equals
b is the y-intercept
16. The measure of an interior angle is
x>y
equal to the sum of the measures of the remote exterior angles
altitude of a triangle
parallel
17. Area= 1/2?r2 length= 1/2?d= ?r perimeter= d(1/2? +1)
triangle
commutative axiom of addition and multiplication
semicircle
simultaneous equations
18. x +z > y+z
right triangle
is a subset of
consistent lines
x>y
19. B>c+ d>e
semicircle
b+d>c+e
all acute angles are equal and all obtuse angles are equal
w>0 and x>y
20. Then their intersection is the null or empty set - written as Ø
if two sets have no elements in common
x is greater than y
average
triangle or straight line
21. M= y2-y1/x2-x1
circle
slope of a line joining two points
x - y
average
22. A+b=c+ d=d
a+b+d=c+d
v(x2-x1)²+ (y2-y1)²
semicircle
radius of a circle
23. xw> yz
all acute angles are equal and all obtuse angles are equal
solution set
x>y>0 and w>z>0
chord
24. A°
set
the last digit is 0
v2/2 or .71
1
25. All odd numbers end in the digits of
times
equal angles
1 - 3 - 5 - 7 - 9
negative reciprocal of the other
26. What % of m is n
a relation is a function
angle bisector
n percent greater than x
(x/100)m= n
27. Angles directly across each other are equal
hemisphere
vertical angles
belongs to
22/7 or 3.14
28. y<x
opposite the greatest side
all acute angles are equal and all obtuse angles are equal
x>y
straight angle
29. 1. square all choices given 2. select the closes choice that is too large and the one that is too small. 3. find the average of the two choices (not of the squares) 4. square the average - if it is greater than the original number - choose the lower
vertical angles
approx square roots
relation
the square of x
30. Area= bh perimeter= 2a +2b
associative axiom of addition and multiplication
no solutions
3.16
parallelogram
31. 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
properties of a rhombus
x + y
xy>0
22/7 or 3.14
32. 1-v3- 2 (90-30-60)
odd
similar triangles
xy + xz
right triangle
33. ?
find the intersection of two sets
negative
y-x
angle
34. The angles opposite to sides that are equal in length have
isosceles triangle
b is the y-intercept
negative
equal angles
35. 5-12-13
right triangle
x-y
if the last digit of the number is 0 -2 -4 -6 -8
v3/2 or .87
36. 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 -
approx sums
the third side
determining if a number is prime
central angle
37. Which - what
a side< b side
any variable
a+b+d=c+d
negative
38. Diagonals divide into 6 equilateral triangles - the sides are equal to the sides of the ________. if inscribed in a circle - the length of each side is equal to the length of the radius of the circle.
x>y and y>z
hexagon
x>y and w>z
odd
39. Side a +side b of a ? is
triangle
greater than c
0 - 2 - 4 - 6 - 8
right triangle
40. 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 diagonals divides it into two pairs of congruent triangles
x>y and w>z
1
combinations
properties of parallelograms
41. The percent decrease from x to y ( y<x)
sphere
percent
diameter of circle
(x-y/x)100
42. Diagonal= sv2
hexagon
right triangle
diagonal of a square
a<x<b
43. Area= 1/2bh perimeter= a+b+c
n percent less than x
triangle
positive
isosceles
44. x older than y
equilateral triangle
pythagorean theorem
probability
x + y
45. 1/y-1/x x -y ? 0
x-y/xy
x + y
odd
perpendicular bisectors
46. Is the relation with ALL ordered pairs REVERSED.
inverse of a relation
xy
right triangle
chord
47. N= combinations taken (order does not matter) r= rate at a time nCr or C(n -r) = (n)!/(r)! (remember to cancel out common numbers)
combinations
right triangle
y-x
x²-y²
48. (amount of increase/original amount) x 100
360 degrees
the percent of increase
area of a triangle
central angle
49. V3
1.7
midpoint of a line segment joining 2 parts
central angle
1/2
50. The increase from x to y
isosceles triangle
y-x
equal to the sum of the measures of the remote exterior angles
negative reciprocal of the other