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GRE Math Strategies

Subjects : gre, math

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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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 base angles of a triangle are equal - the triangle is
parallel
odd
isosceles
x and y

2. 1-1-v2 (90-45-45)
when finding a solution set
right triangle
diameter
pythagorean theorem

3. Sin 60°
n= mx/100
180 degrees
v3/2 or .87
x<0 and z=x+y

4. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
area of a triangle
chord
right triangle
similar triangles

5. x>0 and y>0 or x<0 and y<0
x is greater than y
equilateral triangle
xy>0
x + y

6. V3
y-x
isosceles triangle
1.7
odd

7. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
or
the last digit is either 0 or 5
hemisphere
xy-xz

8. Is the set of the second components of the ordered pairs
greater than c
altitude of a triangle
x>y and y>z
range of a relation

9. 9-40-41
the sum of parts
approx sums
right triangle
parallelogram

10. ? if a side is equal to b side then - the opposite corresponding angles are
equal
range of a relation
the perpendicular distance
area of a triangle

11. Area= l x w perimeter = (2l)(2w)
right triangle
a?n
rectangle
360 degrees

12. 3(4+1)= 3 x 4 + 3 x 1
(x-y/x)100
x²+ 2xy+y²
equals
distributive axiom

13. /100 (the ______ number over 100)
percent
approx products
right triangle
odd

14. x(y+z)
angle a and angle b = angle d
xy + xz
distributive axiom
x>y>0 and w>z>0

15. C²= a²+b² and angle x and y are equal to 90°
cube
greater than c
x<0
right triangle

16. Any integer is divisible by 9 - if
the sum of its digits is divisible by 9
approx sums
180 degrees
all acute angles are equal and all obtuse angles are equal

17. Is the relation with ALL ordered pairs REVERSED.
inverse of a relation
parallel
properties of a rectangle
a relation is a function

18. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
right angle
permutations
cylinder
midpoint of a line segment joining 2 parts

19. Parallel and never intersect - they have no solution at all - they are parallel with the same slope
n percent less than x
odd
inconsistent lines
inscribed angle

20. A¹
simultaneous equations in 2 unknowns
equilateral triangle
equal to the slope of the other
a

21. The product of an odd number of negative numbers is
x>y and w>z
two solutions
right triangle
negative

22. If two lines are perpendicular - the slope of one is the
negative reciprocal of the other
right triangle
set
parallel

23. x(y-z)
odd
x<0 and z=x+y
x percent
xy-xz

24. The angles opposite to sides that are equal in length have
simultaneous equations
radius of a circle
equal angles
standard deviation

25. Any number squared or raised to an even power is
odd
x + y
always positive or zero
the percent of increase

26. Between 90° and 180°
circle
obtuse angle
inverse of a relation
simultaneous equations in 2 unknowns

27. x +z > y+z
quadratic equations
approx products
x>y
any variable

28. Sin 45°
x + y
x - y
v2/2 or .71
vertical angles

29. Ax= by + C
all acute angles are equal and all obtuse angles are equal
relation
simultaneous equations in 2 unknowns
set

30. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
22/7 or 3.14
y intercept
pythagorean theorem
xy>0

31. Any integer is divisible by 5 if
y intercept
properties of a square
the last digit is either 0 or 5
the sum of its digits is divisible by 9

32. 5+3= 3+5 and 5 x 3= 3 x 5
belongs to
x percent
commutative axiom of addition and multiplication
w>0 and x>y

33. The quotient of any quantity (except 0) divided by zero is infinity
associative axiom of addition and multiplication
diameter of circle
never divide by zero
(x/100)m= n

34. Less than 90°
hemisphere
acute angle
the sum of its digits is divisible by 9
n percent less than x

35. ?if y angle< x angle - then
x>y
a side< b side
one solution
n percent greater than x

36. The distance from the center of the circle
x²+ 2xy+y²
midpoint of a line segment joining 2 parts
xy-xz
radius

37. Wx>wy
w>0 and x>y
x + y
3.16
180 degrees

38. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
even
the last digit is 0
probability
trapezoid

39. Of
x+y/xy
simultaneous equations in 2 unknowns
greater than c
times

40. 180°
straight angle
v2/2 or .71
associative axiom of addition and multiplication
y-x

41. x < y or y> x
itself
radius of a circle
x is less than y
approx square roots

42. x more than y
x + y
semicircle
equilateral triangle
probability

43. 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
range of a relation
square
negative

44. Sum of an odd and an even number is
odd
parallelogram
closed set
or

45. 1-v3- 2 (90-30-60)
the last digit is either 0 or 5
equal angles
equal
right triangle

46. If ?B > ?A - then
diameter of circle
v3/2 or .87
inconsistent lines
then side b > side a

47. R²
diameter of circle
the sum of parts
if the last digit of the number is 0 -2 -4 -6 -8
straight angle

48. Sin 30°
never divide by zero
properties of a square
1/2
y angle< x angle

49. Volume= e(edge)³ surface area= 6e²
it is also divisible by 2 and 3
no solutions
itself
cube

50. The sum of any two sides of a triangle is greater than
a<x<b
the third side
right triangle
xy-xz

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GRE Math Strategies

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