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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. Is drawn from the vertices perpendicular to the opposite sides. The lengths of these lines are useful in calculating the area of the trinagle since the area of the triangle is 1/2bh and the height and the _____are the same.
x is greater than y
the last three numbers are divisible by 8
obtuse angle
altitude of a triangle

2. 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}
relation
when finding a solution set
or
hexagon

3. x(y+z)
xy + xz
determining if a number is prime
22/7 or 3.14
the square of x

4. R²
equal
diameter of circle
1.4
regular polygon properties

5. 3(4+1)= 3 x 4 + 3 x 1
the percent of decrease
distributive axiom
radius of a circle
the sum of parts

6. V2
coinciding lines
n percent less than x
average
1.4

7. x less than y
180 degrees
isosceles triangle
opposite the greatest side
y-x

8. ?
perpendicular
and
x>y
properties of a rhombus

9. x/100
perpendicular
x%
a<x<b
+y

10. Volume=lwh surface area= 2wh + 2hl + 2lw
tangent
right triangle
rectangular solid
-y

11. When two parallel lines are crossed by a third straight line (transversal) - then
equal to the sum of the measures of the remote exterior angles
equal
all acute angles are equal and all obtuse angles are equal
y-x

12. The sum of the interior angles is
x²-y²
180 degrees
properties of a square
the percent of increase

13. All three sides and all three angles are equal
area of a triangle
all acute angles are equal and all obtuse angles are equal
equilateral triangle
cylinder

14. The quotient of any quantity (except 0) divided by zero is infinity
never divide by zero
similar triangles
c x (john'S age)
the percent of decrease

15. The product of an odd number of negative numbers is
x is less than y
acute angle
negative
x>y>0 and w>z>0

16. Side a +side b of a ? is
right triangle
greater than c
similar triangles
1/2

17. 7-24-25
rectangular solid
right triangle
angle a and angle b = angle d
x and y

18. If b²-4ac < 0 - there are
hemisphere
no solutions
negative reciprocal of the other
supplementary angles

19. 2k + 1
odd
inconsistent lines
expression of an odd number
approx sums

20. y<x
y-x
square
x>y
odd

21. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
x - y
quadratic equations
xy>0
solution set

22. Area= l x w perimeter = (2l)(2w)
radius of a circle
trapezoid
equal to the slope of the other
rectangle

23. Is - as - was - has - cost
1.7
slope of a line joining two points
equals
acute angle

24. The whole equals
belongs to
the sum of parts
similar triangles
x - y

25. A+b=c+ d=d
even
the square of x
vertical angles
a+b+d=c+d

26. Any integer is divisible by 3 - if
y intercept
xy
right triangle
the sum of its digits is divisible by 3

27. The point where the line crosses the y-axis - x will always = 0 in this case
y intercept
one solution
approx products
relation

28. Angles directly across each other are equal
vertical angles
equal
x - y
180 degrees

29. Volume= e(edge)³ surface area= 6e²
a<x<b
sphere
cube
the square of x

30. Sum of two even numbers is
even
xy
x is greater than y
a+b+d=c+d

31. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
cube
pythagorean theorem
the sum of its digits is divisible by 9
x²+ 2xy+y²

32. V10
central angle
3.16
a side< b side
right triangle

33. Is the set of the first components of the ordered pairs.
the last digit is either 0 or 5
null set
domain of a relation
is a subset of

34. 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)
+y
right triangle
combinations
domain of a relation

35. 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
standard deviation
triangle or straight line
the last two digits of the number make a number that is divisible by 4
slope of a line joining two points

36. Is the set of the second components of the ordered pairs
standard deviation
b+d>c+e
properties of a rhombus
range of a relation

37. z>y
the last two digits of the number make a number that is divisible by 4
properties of parallelograms
associative axiom of addition and multiplication
x<0 and z=x+y

38. Area= 1/2bh perimeter= a+b+c
no solutions
regular polygon properties
straight angle
triangle

39. 3-4-5
angle
xy
x + y
right triangle

40. The sum of any two sides of a triangle is greater than
quadratic equations
Axioms
the third side
x>y>0 and w>z>0

41. If y²= x - then y =
obtuse angle
1.7
altitude of a triangle
±vx

42. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
percent
trapezoid
slope of a line joining two points
approx square roots

43. 1-1-v2 (90-45-45)
Axioms
triangle
right triangle
3.16

44. A line that is perpendicular to a radius and that passes through only one point of the circle.
x is less than y
tangent
angle a and angle b = angle d
percent

45. Every set is a subset of
supplementary angles
all acute angles are equal and all obtuse angles are equal
itself
angle

46. The point where the line crosses the x-axis - y will always = 0 in this case
isosceles triangle
consistent lines
the last digit is 0
x intercept

47. Between 90° and 180°
closed set
regular polygon properties
obtuse angle
never divide by zero

48. 90°
similar triangles
right angle
hemisphere
x + y

49. The product of x and y
hemisphere
x%
xy
equal

50. ? if a side < b side - then
hemisphere
x + y
y angle< x angle
x%