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GRE Math Strategies

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. The measure of an interior angle is
Axioms
semicircle
(x-y/x)100
equal to the sum of the measures of the remote exterior angles

2. ?
belongs to
+y
x>y
(x/100)m= n

3. Set of solutions to an equation
supplementary angles
0 - 2 - 4 - 6 - 8
solution set
x<0

4. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
always positive or zero
expression of an even number
quadratic equations
relation

5. The sum of any two sides of a triangle is greater than
right triangle
right triangle
slope of a line joining two points
the third side

6. Write down every member that the two sets have in common. The intersection of the sets A and B is a set written AnB
domain of a relation
a
find the intersection of two sets
x-y

7. Then their intersection is the null or empty set - written as Ø
consistent lines
if the last digit of the number is 0 -2 -4 -6 -8
if two sets have no elements in common
implies

8. 1-1-v2 (90-45-45)
properties of parallelograms
right triangle
a<x<b
the percent of increase

9. Write down every member in one or both of the sets - the union of two sets is a new set. the union of set A and B is written as A?B
-y
finding the union of sets
x>y and y>z
semicircle

10. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
isosceles triangle
x>y>0 and w>z>0
angle bisector
v2/2 or .71

11. ?
even
triangle
or
the last digit is 0

12. If two lines are perpendicular - the slope of one is the
x²+ 2xy+y²
negative reciprocal of the other
square
a?n

13. 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
1 - 3 - 5 - 7 - 9
xy
properties of a rhombus
distributive axiom

14. Is a subset of every set
the sum of parts
null set
inverse of a relation
x>y

15. The distance between two parallel lines or from a point to a line always means
equilateral triangle
b is the y-intercept
the perpendicular distance
x - y

16. Is the set of the second components of the ordered pairs
range of a relation
the sum of its digits is divisible by 9
right triangle
never divide by zero

17. Intersect at only one point - the point is the only solution to the pair of equations
xy>0
inscribed angle
when finding a solution set
consistent lines

18. Volume=lwh surface area= 2wh + 2hl + 2lw
rectangular solid
distributive axiom
x²+ 2xy+y²
isosceles triangle

19. The percent increase from x to y (y>x)
±vx
sphere
(y-x/x)100
obtuse angle

20. 360°
vertical angles
circle
parallelogram
trapezoid

21. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
x<0 and z=x+y
even
parallel
cylinder

22. x - (n/100)x
x - y
expression of an odd number
belongs to
n percent less than x

23. A subset of a set is
a set
xy>0
is a subset of
right triangle

24. Two tangents to a circle from the same point outside of the circle are always
equal
simultaneous equations
w>0 and x>y
vertical angles

25. Ax= by + C
simultaneous equations in 2 unknowns
x percent
x%
pythagorean theorem

26. What % of m is n
equal
(x/100)m= n
triangle or straight line
n percent greater than x

27. Area= l x w perimeter = (2l)(2w)
right triangle
(x/100)m= n
sphere
rectangle

28. (x+y)(x+y)= (x+y)²
if two sets have no elements in common
x²+ 2xy+y²
equal
w>0 and x>y

29. C times as old as john

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30. If y²= x - then y =
±vx
(x/100)m= n
right triangle
x+y/xy

31. 1/an
-y
a?n
180 degrees
it is also divisible by 2 and 3

32. 1-1-1 (60-60-60)
times
x - y
x intercept
equilateral triangle

33. Any integer is divisible by 8 if
the last three numbers are divisible by 8
then side b > side a
1.7
xy-xz

34. Sin 30°
±vx
v(x2-x1)²+ (y2-y1)²
opposite the greatest side
1/2

35. y years from now
+y
perpendicular bisectors
the percent of decrease
hemisphere

36. The angles opposite to sides that are equal in length have
equal angles
the last digit is either 0 or 5
1
approx square roots

37. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
right triangle
x>y and w>z
sphere
similar triangles

38. z>y
xy-xz
x<0 and z=x+y
supplementary angles
+y

39. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
isosceles
right triangle
associative axiom of addition and multiplication
equals

40. Area = ?r² circumference(perimeter)= 2?r
xy< 0
is a subset of
equals
circle

41. Any arc length is less than
equilateral triangle
360 degrees
equal to the slope of the other
consistent lines

42. (sum of individual quantities or measures/ total number of quantities or measures)
two solutions
average
equals
acute angle

43. When two parallel lines are crossed by a third straight line (transversal) - then
all acute angles are equal and all obtuse angles are equal
properties of a rhombus
right triangle
isosceles

44. A¹
a
right triangle
cylinder
a+b+d=c+d

45. Area= 1/4s² v3 perimeter= 3s altitude= 1/2s v3
area of a triangle
equilateral triangle
the last two digits of the number make a number that is divisible by 4
cube

46. x/100
midpoint of a line segment joining 2 parts
x²-2xy+y²
the last two digits of the number make a number that is divisible by 4
x percent

47. xn<0 if n is odd and xn>0 if n is even
similar triangles
sphere
360 degrees
x<0

48. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
sphere
midpoint of a line segment joining 2 parts
right triangle
right triangle

49. x > y or y< x
y intercept
area of a triangle
x is greater than y
right triangle

50. The quotient of any quantity (except 0) divided by zero is infinity
x+y/xy
medians of a triangle
never divide by zero
properties of a rhombus