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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 sum of any two sides of a triangle is greater than
if two sets have no elements in common
combinations
360 degrees
the third side

2. C²= a²+b² and angle x and y are equal to 90°
y-x
0 - 2 - 4 - 6 - 8
right triangle
properties of a rhombus

3. 2k + 1
xy + xz
expression of an odd number
hemisphere
x is greater than y

4. ?
supplementary angles
perpendicular
0 - 2 - 4 - 6 - 8
x²-2xy+y²

5. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
properties of a square
+y
hemisphere
odd

6. 3-4-5
the last digit is 0
right triangle
times
the sum of its digits is divisible by 9

7. 1/2bh
isosceles
area of a triangle
any variable
y-x

8. C times as old as john

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9. 1. subtract each number from the average of the numbers 2. square the result of each of the numbers 3. add all those results and then divide by how many numbers you originally had. 4. take the square root of that result
(x/100)m= n
belongs to
standard deviation
times

10. If an equation can be put into the form y= mx +b - then
b is the y-intercept
supplementary angles
find the intersection of two sets
regular polygon properties

11. M= y2-y1/x2-x1
x + y
similar triangles
slope of a line joining two points
itself

12. Any number squared or raised to an even power is
always positive or zero
xy
y intercept
a side< b side

13. If the each element of the domain occurs only once as a FIRST component
a relation is a function
coinciding lines
never divide by zero
domain of a relation

14. x/100
approx square roots
x percent
closed set
isosceles triangle

15. 1/x + 1/y x -y ? 0
x+y/xy
x + y
x - y
pythagorean theorem

16. All odd numbers end in the digits of
distributive axiom
Axioms
1 - 3 - 5 - 7 - 9
quadratic equations

17. Area= 1/2bh perimeter= a+b+c
combinations
standard deviation
xy + xz
triangle

18. Angles directly across each other are equal
a
vertical angles
angle inscribed in semicircle
a<x<b

19. (x+y) (x-y)
a<x<b
chord
when finding a solution set
x²-y²

20. Volume= 4/3?r² surface area= 4?r²
inconsistent lines
x percent
cylinder
sphere

21. ?
x-y
a
is a subset of
times

22. x/100
positive
-y
x percent
x%

23. In a triangle - the greatest angles lies
sphere
acute angle
average
opposite the greatest side

24. Product of two odd numbers is
x percent
approx sums
chord
odd

25. A+b=c+ d=d
diagonal of a square
isosceles triangle
a+b+d=c+d
no solutions

26. Sin 60°
average
equilateral triangle
angle inscribed in semicircle
v3/2 or .87

27. A chord through the center of the circle
+y
all acute angles are equal and all obtuse angles are equal
1.7
diameter

28. Area= l x w perimeter = (2l)(2w)
rectangle
radius of a circle
inverse of a relation
opposite the greatest side

29. Is the set of the first components of the ordered pairs.
properties of a rectangle
x + y
inscribed angle
domain of a relation

30. 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)
x is less than y
probability
cylinder
the last three numbers are divisible by 8

31. The percent increase from x to y (y>x)
(y-x/x)100
right triangle
equal angles
right triangle

32. Every set is a subset of
closed set
itself
tangent
expression of an odd number

33. The increase from x to y
opposite the greatest side
inconsistent lines
two solutions
y-x

34. A/A¹ = B/B¹= C/C¹
similar triangles
xy + xz
standard deviation
x<0 and z=x+y

35. (sum of individual quantities or measures/ total number of quantities or measures)
properties of a rhombus
supplementary angles
1
average

36. The point where the line crosses the x-axis - y will always = 0 in this case
x intercept
right triangle
the sum of parts
x>y and w>z

37. If the base angles of a triangle are equal - the triangle is
y-x
x-y/xy
domain of a relation
isosceles

38. A<x and x<b
slope of a line joining two points
properties of a rhombus
a<x<b
inscribed angle

39. (x-y)(x-y) = (x-y)²
x>y>0 and w>z>0
1/2
angle bisector
x²-2xy+y²

40. All three sides and all three angles are equal
n percent less than x
equilateral triangle
b+d>c+e
properties of a rhombus

41. x>z
angle
1
x>y and y>z
determining if a number is prime

42. 9-40-41
equal
right triangle
1.7
angle a and angle b = angle d

43. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
solution set
if two sets have no elements in common
b+d>c+e
similar triangles

44. Two tangents to a circle from the same point outside of the circle are always
isosceles
b is the y-intercept
equal
cylinder

45. What % of m is n
x²-y²
(x/100)m= n
average
parallel

46. B²-4ac = 0 there is
x>y and w>z
trapezoid
one solution
right triangle

47. x less than y
y-x
x>y and w>z
triangle or straight line
x and y

48. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
inconsistent lines
b+d>c+e
straight angle
right triangle

49. In a triangle - if ?c(interior angle in triangle) and ?d(exterior angle out of triangle) are supplmentary angles - than ?a and ?b are remote interior angles to <d - thus - a +b+c = 180 (triangle) c+d = 180 (supplementary angles)
diagonal of a square
x>y
angle a and angle b = angle d
v2/2 or .71

50. x > y or y< x
x is greater than y
a side< b side
xy< 0
triangle