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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. All three sides and all three angles are equal
equilateral triangle
central angle
perpendicular bisectors
x<0

2. All angles are right angles and diagonals are equal 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
angle a and angle b = angle d
x%
equilateral triangle
properties of a rectangle

3. The percent increase from x to y (y>x)
(y-x/x)100
a
odd
all acute angles are equal and all obtuse angles are equal

4. V3
sphere
1.7
b+d>c+e
x²-2xy+y²

5. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
isosceles triangle
right triangle
simultaneous equations
slope of a line joining two points

6. If the base angles of a triangle are equal - the triangle is
isosceles
hexagon
negative
properties of a square

7. In a triangle - the greatest angles lies
1 - 3 - 5 - 7 - 9
vertical angles
opposite the greatest side
diameter

8. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
(x/100)m= n
coinciding lines
associative axiom of addition and multiplication
y-x

9. Two tangents to a circle from the same point outside of the circle are always
circle
vertical angles
negative reciprocal of the other
equal

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)
xy< 0
x-y/xy
polygon
set

11. Area= 1/4s² v3 perimeter= 3s altitude= 1/2s v3
x + y
x - y
determining if a number is prime
equilateral triangle

12. If b²-4ac < 0 - there are
y angle< x angle
altitude of a triangle
no solutions
isosceles triangle

13. x>0 and y>0 or x<0 and y<0
approx sums
the percent of increase
xy>0
approx square roots

14. The sum of any two sides of a triangle is greater than
y-x
the third side
null set
right triangle

15. If y²= x - then y =
±vx
x<0 and z=x+y
equal angles
isosceles triangle

16. Set of solutions to an equation
b+d>c+e
angle
solution set
simultaneous equations in 2 unknowns

17. Sum of two odd numbers is
percent
even
times
equals

18. The difference between x and y
isosceles
x - y
circle
commutative axiom of addition and multiplication

19. ?
the perpendicular distance
perpendicular
simultaneous equations in 2 unknowns
right triangle

20. x + (n/100)x
n percent greater than x
-y
medians of a triangle
never divide by zero

21. The distance between two parallel lines or from a point to a line always means
a?n
radius of a circle
then side b > side a
the perpendicular distance

22. N is what % of m
n= mx/100
right triangle
closed set
b is the y-intercept

23. x > y or y< x
all acute angles are equal and all obtuse angles are equal
always positive or zero
x is greater than y
if the last digit of the number is 0 -2 -4 -6 -8

24. Any integer is divisible by 3 - if
vertical angles
the sum of its digits is divisible by 3
x + y
y-x

25. ? if a side is equal to b side then - the opposite corresponding angles are
equal
x²-2xy+y²
one solution
right triangle

26. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
1/2
1
trapezoid
right triangle

27. xw> yz
x>y>0 and w>z>0
-y
+y
hexagon

28. 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
always positive or zero
equilateral triangle
properties of a rhombus
a+b+d=c+d

29. The distance from the center of the circle
tangent
all acute angles are equal and all obtuse angles are equal
v2/2 or .71
radius

30. The sume of x and y
w<0 and x>y
never divide by zero
x + y
straight angle

31. xn<0 if n is odd and xn>0 if n is even
x is greater than y
if two sets have no elements in common
a?n
x<0

32. Product of two odd numbers is
y angle< x angle
odd
and
the sum of parts

33. 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.
odd
cylinder
hexagon
xy

34. A pair of equations in two unknowns (each is graphed seperately and each is represented by a straight line)
1
distributive axiom
simultaneous equations
angle inscribed in semicircle

35. B>c+ d>e
belongs to
b+d>c+e
negative reciprocal of the other
x - y

36. x/100
x%
altitude of a triangle
equal to the sum of the measures of the remote exterior angles
average

37. Area= bh perimeter= 2a +2b
diameter of circle
central angle
diameter
parallelogram

38. 7-24-25
(x/100)m= n
midpoint of a line segment joining 2 parts
the perpendicular distance
right triangle

39. The sum of the interior angles is
the last two digits of the number make a number that is divisible by 4
180 degrees
inscribed angle
22/7 or 3.14

40. Integer is divisible by 2
diagonal of a square
if the last digit of the number is 0 -2 -4 -6 -8
x²+ 2xy+y²
never divide by zero

41. If two lines are perpendicular - the slope of one is the
x>y
negative reciprocal of the other
odd
greater than c

42. Area = ?r² circumference(perimeter)= 2?r
and
b is the y-intercept
simultaneous equations
circle

43. (amount of increase/original amount) x 100
a set
xy< 0
the percent of increase
x>y and y>z

44. Any integer is divisible by 8 if
closed set
hemisphere
the last three numbers are divisible by 8
right triangle

45. y years ago
a<x<b
percent
-y
x%

46. 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
pythagorean theorem
probability
obtuse angle

47. y years from now
+y
similar triangles
the sum of its digits is divisible by 3
determining if a number is prime

48. 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.
c x (john'S age)
it is also divisible by 2 and 3
x-y/xy
perpendicular bisectors

49. V2/2- v2/2 - 1 (90-45-45)
n percent less than x
x²-2xy+y²
x + y
isosceles triangle

50. The percent decrease from x to y ( y<x)
and
even
(x-y/x)100
rectangular solid

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GRE Math Strategies

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