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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. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
opposite the greatest side
midpoint of a line segment joining 2 parts
never divide by zero
cube

2. The point where the line crosses the x-axis - y will always = 0 in this case
x - y
0 - 2 - 4 - 6 - 8
central angle
x intercept

3. 2k + 1
expression of an odd number
y angle< x angle
(x/100)m= n
radius

4. If two lines are perpendicular - the slope of one is the
right triangle
square
negative reciprocal of the other
x%

5. x more than y
right triangle
distributive axiom
combinations
x + y

6. The quotient of any quantity (except 0) divided by zero is infinity
the last two digits of the number make a number that is divisible by 4
never divide by zero
or
a side< b side

7. x + (n/100)x
angle inscribed in semicircle
b is the y-intercept
1 - 3 - 5 - 7 - 9
n percent greater than x

8. x²
right triangle
the square of x
xy< 0
(x/100)m= n

9. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
vertical angles
medians of a triangle
midpoint of a line segment joining 2 parts
altitude of a triangle

10. The distance between two parallel lines or from a point to a line always means
(x-y/x)100
right triangle
right triangle
the perpendicular distance

11. x older than y
all acute angles are equal and all obtuse angles are equal
null set
x + y
times

12. (amount of increase/original amount) x 100
angle
±vx
the percent of increase
n percent less than x

13. A/A¹ = B/B¹= C/C¹
vertical angles
similar triangles
diameter of circle
x - y

14. The whole equals
similar triangles
no solutions
vertical angles
the sum of parts

15. Are the lines drawn from each vertex to the midpoint of its opposite side. they cross at a point that divides each individual ______into two parts.
right triangle
all acute angles are equal and all obtuse angles are equal
v(x2-x1)²+ (y2-y1)²
medians of a triangle

16. Area= l x w perimeter = (2l)(2w)
two solutions
rectangle
approx sums
inconsistent lines

17. 2k
the third side
vertical angles
x-y
expression of an even number

18. 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)
angle a and angle b = angle d
1.7
y angle< x angle
opposite the greatest side

19. ? if a side < b side - then
y angle< x angle
determining if a number is prime
y-x
x + y

20. C²= a²+b² and angle x and y are equal to 90°
right triangle
diagonal of a square
square
xy + xz

21. Is the relation with ALL ordered pairs REVERSED.
right triangle
distributive axiom
chord
inverse of a relation

22. If b²-4ac > 0 there are
inscribed angle
distributive axiom
two solutions
negative reciprocal of the other

23. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
x - y
radius
hemisphere
the perpendicular distance

24. Angles that equal 180 degrees
1 - 3 - 5 - 7 - 9
the last two digits of the number make a number that is divisible by 4
supplementary angles
right triangle

25. ?
x percent
is a subset of
or
tangent

26. Product of an even number and any other number is
x<0
approx square roots
square
even

27. In a triangle - the greatest angles lies
opposite the greatest side
polygon
properties of a rectangle
isosceles

28. If under the operation - any two members of the set constitute an element of the set ( * the product of the elements multiplied by themselves must also be an element of the set*)
the sum of its digits is divisible by 3
closed set
(y-x/x)100
diameter of circle

29. x > y or y< x
permutations
xy-xz
equal angles
x is greater than y

30. The angles opposite to sides that are equal in length have
straight angle
equal angles
hexagon
odd

31. Any number squared or raised to an even power is
inscribed angle
x>y and w>z
always positive or zero
medians of a triangle

32. y<x
x is less than y
x>y
x²-y²
a+b+d=c+d

33. Any line that connects two points on a circle.
angle a and angle b = angle d
22/7 or 3.14
always positive or zero
chord

34. Area= 1/2bh perimeter= a+b+c
parallelogram
commutative axiom of addition and multiplication
triangle
itself

35. 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.
22/7 or 3.14
the percent of increase
altitude of a triangle
right triangle

36. Is the set of the first components of the ordered pairs.
x>y and y>z
properties of a rhombus
domain of a relation
right triangle

37. Is - as - was - has - cost
isosceles triangle
equals
equal
expression of an odd number

38. A<x and x<b
is a subset of
a<x<b
1.7
equilateral triangle

39. 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.
triangle or straight line
if the last digit of the number is 0 -2 -4 -6 -8
perpendicular bisectors
reflex angle

40. Any integer is divisible by 3 - if
the sum of its digits is divisible by 3
any variable
the sum of its digits is divisible by 9
combinations

41. Angle whose sides are two radii of the circle. The vertex of this angle is the center of the circle. The number of degrees is equal to the amount of arc length that the radd intercept.
x>y and w>z
acute angle
central angle
+y

42. A pair of equations in two unknowns (each is graphed seperately and each is represented by a straight line)
a set
simultaneous equations
x intercept
the third side

43. M= y2-y1/x2-x1
isosceles triangle
negative reciprocal of the other
the percent of increase
slope of a line joining two points

44. All sides are equal and all of whose angles are equal. 1. can be inscribed in a circle and can be circumscribed about another circle. 2. each angle is equal to the sum of the angles divided by the number of sides 180(n-2)°/n.
equals
regular polygon properties
circle
distributive axiom

45. x +z > y+z
consistent lines
x>y
the last digit is either 0 or 5
times

46. ?
quadratic equations
angle
properties of a rhombus
even

47. Any integer is divisible by 10 - if
x - y
the last digit is 0
trapezoid
w<0 and x>y

48. The product of an odd number of negative numbers is
equilateral triangle
negative
right triangle
any variable

49. ?
x²-2xy+y²
22/7 or 3.14
right triangle
null set

50. A line that is perpendicular to a radius and that passes through only one point of the circle.
v(x2-x1)²+ (y2-y1)²
any variable
tangent
x>y and y>z