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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. x < y or y> x
x is less than y
angle a and angle b = angle d
1/2
right triangle

2. All odd numbers end in the digits of
v3/2 or .87
quadratic equations
permutations
1 - 3 - 5 - 7 - 9

3. Angles directly across each other are equal
standard deviation
right triangle
vertical angles
central angle

4. Product of an even number and any other number is
supplementary angles
circle
even
set

5. 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)
vertical angles
combinations
right triangle
right triangle

6. Area= 1/2bh perimeter= a+b+c
triangle
greater than c
simultaneous equations in 2 unknowns
(x-y/x)100

7. 1/an
a?n
even
isosceles triangle
x-y

8. The product of x and y
a+b+d=c+d
180 degrees
xy
angle inscribed in semicircle

9. Of
times
tangent
the last digit is 0
approx products

10. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
all acute angles are equal and all obtuse angles are equal
(y-x/x)100
set
angle bisector

11. Area= l x w perimeter = (2l)(2w)
rectangle
properties of a rectangle
x%
equals

12. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
expression of an odd number
cylinder
x>y and y>z
never divide by zero

13. 2k + 1
expression of an odd number
equilateral triangle
y angle< x angle
range of a relation

14. A/A¹ = B/B¹= C/C¹
percent
set
x + y
similar triangles

15. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
all acute angles are equal and all obtuse angles are equal
negative reciprocal of the other
properties of a rectangle
vertical angles

16. In a triangle - the greatest angles lies
opposite the greatest side
belongs to
is a subset of
the third side

17. The lines that divide each angle of the triangle into two equal parts. these lines meet in a point that is the center of a circle inscribed in the triangle.
22/7 or 3.14
angle bisector
commutative axiom of addition and multiplication
triangle or straight line

18. Is the relation with ALL ordered pairs REVERSED.
inverse of a relation
obtuse angle
w>0 and x>y
positive

19. V10
3.16
pythagorean theorem
isosceles
perpendicular

20. ?
1
implies
average
properties of a square

21. Wx>wy
all acute angles are equal and all obtuse angles are equal
right triangle
w>0 and x>y
regular polygon properties

22. Are the lines that bisect and are perpendicular to each of the three sides. The point where they meet is the center of the circumscribed circle.
chord
the last digit is 0
perpendicular bisectors
xy>0

23. A line that is perpendicular to a radius and that passes through only one point of the circle.
rectangular solid
simultaneous equations in 2 unknowns
midpoint of a line segment joining 2 parts
tangent

24. ?
inscribed angle
angle a and angle b = angle d
22/7 or 3.14
w<0 and x>y

25. The decrease from x to y
a relation is a function
x-y
combinations
a side< b side

26. Sin 60°
simultaneous equations
standard deviation
v(x2-x1)²+ (y2-y1)²
v3/2 or .87

27. 8-15-17
triangle
+y
right triangle
chord

28. x/100
x percent
x%
belongs to
rectangle

29. Two tangents to a circle from the same point outside of the circle are always
altitude of a triangle
semicircle
b+d>c+e
equal

30. Any integer is divisible by 9 - if
domain of a relation
odd
the third side
the sum of its digits is divisible by 9

31. V2/2- v2/2 - 1 (90-45-45)
right triangle
never divide by zero
(x-y/x)100
isosceles triangle

32. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
equilateral triangle
w<0 and x>y
area of a triangle
right triangle

33. 1-1-1 (60-60-60)
rectangular solid
acute angle
equilateral triangle
properties of parallelograms

34. The measure of an interior angle is
the sum of its digits is divisible by 9
determining if a number is prime
tangent
equal to the sum of the measures of the remote exterior angles

35. The quotient of any quantity (except 0) divided by zero is infinity
is a subset of
circle
never divide by zero
x<0 and z=x+y

36. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
trapezoid
right triangle
approx sums
x and y

37. Every set is a subset of
a+b+d=c+d
negative reciprocal of the other
itself
0 - 2 - 4 - 6 - 8

38. If b²-4ac < 0 - there are
no solutions
if two sets have no elements in common
the last digit is 0
n percent greater than x

39. 2k
chord
equilateral triangle
right angle
expression of an even number

40. All three sides and all three angles are equal
a relation is a function
the last two digits of the number make a number that is divisible by 4
equal to the slope of the other
equilateral triangle

41. x older than y
x + y
solution set
acute angle
the third side

42. Area= 1/4s² v3 perimeter= 3s altitude= 1/2s v3
the sum of its digits is divisible by 3
equilateral triangle
solution set
negative reciprocal of the other

43. Then their intersection is the null or empty set - written as Ø
is a subset of
xy< 0
if two sets have no elements in common
right triangle

44. x younger than y
±vx
coinciding lines
circle
x - y

45. x(y+z)
simultaneous equations
then side b > side a
right triangle
xy + xz

46. Is always a right angle.
angle inscribed in semicircle
when finding a solution set
right triangle
determining if a number is prime

47. 1-1-v2 (90-45-45)
x>y and y>z
right triangle
angle bisector
the last digit is 0

48. Is a rectangular rhombus 1. all four sides are equal 2. opposite pairs of sides are parallel 3. diagonals are equal - are perpendicular to each other - and bisect each other. 4. all the angles are right triangles 5. diagonals intersect the vertices a
parallelogram
x>y
x²-y²
properties of a square

49. A chord through the center of the circle
y-x
right triangle
diameter
set

50. x more than y
when finding a solution set
the third side
x + y
right angle