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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. If the each element of the domain occurs only once as a FIRST component
a?n
180 degrees
closed set
a relation is a function

2. Product of two odd numbers is
relation
odd
approx square roots
x>y

3. 90°
the sum of its digits is divisible by 9
0 - 2 - 4 - 6 - 8
right angle
approx sums

4. ? if a side < b side - then
(y-x/x)100
y-x
a?n
y angle< x angle

5. Diagonal= sv2
diagonal of a square
altitude of a triangle
xy-xz
commutative axiom of addition and multiplication

6. If an equation can be put into the form y= mx +b - then
right angle
simultaneous equations in 2 unknowns
the sum of parts
b is the y-intercept

7. Is always a right angle.
right triangle
a+b+d=c+d
angle inscribed in semicircle
finding the union of sets

8. A closed plane whose sides are straight lines. The sum of the angles is equal to 180(n-2) - where n is the number of sides.
polygon
altitude of a triangle
equal angles
commutative axiom of addition and multiplication

9. ?
semicircle
parallel
right triangle
is a subset of

10. 360°
perpendicular
x+y/xy
trapezoid
circle

11. 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.
v2/2 or .71
altitude of a triangle
c x (john'S age)
semicircle

12. N is what % of m
+y
equal to the slope of the other
straight angle
n= mx/100

13. 3-4-5
right triangle
equal angles
x percent
triangle or straight line

14. What % of m is n
xy-xz
then side b > side a
(x/100)m= n
percent

15. The percent increase from x to y (y>x)
c x (john'S age)
x>y
(y-x/x)100
angle

16. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
xy< 0
polygon
midpoint of a line segment joining 2 parts
a relation is a function

17. 1/2d
equal
radius of a circle
implies
isosceles

18. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
n percent greater than x
the last three numbers are divisible by 8
vertical angles
positive

19. Sum of an odd and an even number is
1/2
the percent of increase
altitude of a triangle
odd

20. 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
diameter of circle
xy>0
properties of a square
rectangle

21. 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 diagonals divides it into two pairs of congruent triangles
xy-xz
properties of parallelograms
permutations
pythagorean theorem

22. y years ago
b+d>c+e
isosceles
midpoint of a line segment joining 2 parts
-y

23. Between 180° and 360°
expression of an even number
reflex angle
parallelogram
cylinder

24. A+b=c+ d=d
x intercept
simultaneous equations
hexagon
a+b+d=c+d

25. V3
approx products
coinciding lines
angle a and angle b = angle d
1.7

26. Any line that connects two points on a circle.
the sum of parts
x>y and y>z
chord
x-y/xy

27. xn<0 if n is odd and xn>0 if n is even
perpendicular
x<0
1/2
radius

28. Diagonals divide into 6 equilateral triangles - the sides are equal to the sides of the ________. if inscribed in a circle - the length of each side is equal to the length of the radius of the circle.
hexagon
(x/100)m= n
xy + xz
v3/2 or .87

29. 2k + 1
a?n
expression of an odd number
equal angles
equal

30. 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*)
isosceles triangle
closed set
relation
domain of a relation

31. Less than 90°
or
acute angle
right triangle
the sum of its digits is divisible by 3

32. 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.
reflex angle
equal angles
commutative axiom of addition and multiplication
medians of a triangle

33. Any integer is divisible by 6 if
closed set
1.7
it is also divisible by 2 and 3
odd

34. Angle whose sides are two chords. The vertex of the angles lies on the circumference of the circle. The number of degrees of the angle is equal to 1/2 the intercepted arc
vertical angles
right triangle
inscribed angle
the sum of its digits is divisible by 3

35. 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
itself
1 - 3 - 5 - 7 - 9
diameter of circle
properties of a rhombus

36. Sum of two odd numbers is
-y
isosceles triangle
y intercept
even

37. The sum of the interior angles is
combinations
right triangle
180 degrees
any variable

38. When two parallel lines are crossed by a third straight line (transversal) - then
x - y
x + y
probability
all acute angles are equal and all obtuse angles are equal

39. (x+y)(x+y)= (x+y)²
circle
angle a and angle b = angle d
x²+ 2xy+y²
isosceles

40. V10
a side< b side
3.16
(y-x/x)100
supplementary angles

41. 1-v3- 2 (90-30-60)
right triangle
two solutions
v2/2 or .71
x>y and y>z

42. 8-15-17
right triangle
equilateral triangle
all acute angles are equal and all obtuse angles are equal
xy-xz

43. A chord through the center of the circle
opposite the greatest side
the sum of its digits is divisible by 9
the third side
diameter

44. The point where the line crosses the x-axis - y will always = 0 in this case
or
v3/2 or .87
x intercept
right angle

45. All even numbers end in the digits of
0 - 2 - 4 - 6 - 8
standard deviation
n= mx/100
1/2

46. Which - what
domain of a relation
obtuse angle
any variable
rectangular solid

47. Intersect at only one point - the point is the only solution to the pair of equations
trapezoid
consistent lines
then side b > side a
equal

48. ?if y angle< x angle - then
x<0 and z=x+y
x is less than y
a side< b side
odd

49. ?
belongs to
x + y
acute angle
find the intersection of two sets

50. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
a side< b side
similar triangles
x + y
rectangle