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Test your basic knowledge |
GRE Math Strategies
Start Test
Study First
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. 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.
regular polygon properties
belongs to
right angle
similar triangles
2. Wx>wy
cylinder
a
w>0 and x>y
inconsistent lines
3. 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)
expression of an odd number
vertical angles
combinations
simultaneous equations in 2 unknowns
4. B>c+ d>e
is a subset of
radius of a circle
parallel
b+d>c+e
5. A¹
a
x - y
a<x<b
y angle< x angle
6. Between 90° and 180°
x intercept
permutations
obtuse angle
reflex angle
7. 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
when finding a solution set
commutative axiom of addition and multiplication
1.7
properties of parallelograms
8. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
right triangle
quadratic equations
a+b+d=c+d
x>y and y>z
9. Is a subset of every set
find the intersection of two sets
null set
1 - 3 - 5 - 7 - 9
straight angle
10. Sin 45°
trapezoid
y intercept
the last two digits of the number make a number that is divisible by 4
v2/2 or .71
11. 7-24-25
approx square roots
right triangle
combinations
permutations
12. x more than y
x intercept
cylinder
standard deviation
x + y
13. 180°
no solutions
inconsistent lines
right triangle
straight angle
14. Side a +side b of a ? is
greater than c
perpendicular bisectors
approx sums
consistent lines
15. (amount of increase/original amount) x 100
inconsistent lines
the percent of increase
180 degrees
find the intersection of two sets
16. Volume= e(edge)³ surface area= 6e²
belongs to
cube
the last three numbers are divisible by 8
rectangle
17. ?
y-x
all acute angles are equal and all obtuse angles are equal
expression of an even number
and
18. The point where the line crosses the y-axis - x will always = 0 in this case
22/7 or 3.14
y intercept
pythagorean theorem
a side< b side
19. 1. square all choices given 2. select the closes choice that is too large and the one that is too small. 3. find the average of the two choices (not of the squares) 4. square the average - if it is greater than the original number - choose the lower
approx square roots
expression of an even number
tangent
similar triangles
20. If y²= x - then y =
equilateral triangle
±vx
hemisphere
the percent of decrease
21. C times as old as john
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22. Any integer is divisible by 9 - if
always positive or zero
the sum of its digits is divisible by 9
n percent greater than x
equal to the sum of the measures of the remote exterior angles
23. Is the set of the first components of the ordered pairs.
domain of a relation
b is the y-intercept
(y-x/x)100
cylinder
24. 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
range of a relation
angle bisector
never divide by zero
25. y years from now
x and y
+y
circle
x>y and y>z
26. Angles that equal 180 degrees
the last digit is 0
supplementary angles
approx products
simultaneous equations in 2 unknowns
27. x>z
properties of parallelograms
range of a relation
x>y and y>z
properties of a rectangle
28. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
cylinder
vertical angles
simultaneous equations in 2 unknowns
+y
29. x+w> y+z
±vx
x>y and w>z
if two sets have no elements in common
properties of a rhombus
30. The point where the line crosses the x-axis - y will always = 0 in this case
the third side
x²-2xy+y²
x intercept
if the last digit of the number is 0 -2 -4 -6 -8
31. 3(4+1)= 3 x 4 + 3 x 1
distributive axiom
x+y/xy
diameter of circle
all acute angles are equal and all obtuse angles are equal
32. The distance from the center of the circle
find the intersection of two sets
angle bisector
xy< 0
radius
33. 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*)
properties of a rhombus
x>y and w>z
approx sums
closed set
34. 1-1-v2 (90-45-45)
right triangle
x<0 and z=x+y
w<0 and x>y
quadratic equations
35. A line that is perpendicular to a radius and that passes through only one point of the circle.
tangent
y angle< x angle
equilateral triangle
xy-xz
36. If two lines are parallel - the slope of one is
pythagorean theorem
equal to the slope of the other
isosceles
opposite the greatest side
37. V10
3.16
1.4
average
x - y
38. The measure of an interior angle is
equal to the sum of the measures of the remote exterior angles
properties of a rectangle
pythagorean theorem
simultaneous equations in 2 unknowns
39. Sum of two odd numbers is
the last two digits of the number make a number that is divisible by 4
even
isosceles triangle
y intercept
40. x older than y
properties of a rectangle
w<0 and x>y
find the intersection of two sets
x + y
41. /100 (the ______ number over 100)
x>y
percent
if the last digit of the number is 0 -2 -4 -6 -8
equal
42. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
equals
associative axiom of addition and multiplication
the third side
x percent
43. 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
similar triangles
b+d>c+e
x + y
44. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
v2/2 or .71
times
vertical angles
equal angles
45. ?
simultaneous equations
parallel
implies
properties of a rectangle
46. 1. determine a rough approximation of the square root of the number. 2. divide the number by all the primes that are less than the approx square root. If the number is not divisible by ANY of the these primes - then it is prime. If it IS divisible -
determining if a number is prime
x is less than y
it is also divisible by 2 and 3
a<x<b
47. 1-v3- 2 (90-30-60)
two solutions
right triangle
the perpendicular distance
square
48. ?
right triangle
the last three numbers are divisible by 8
x²+ 2xy+y²
22/7 or 3.14
49. Ax= by + C
equilateral triangle
simultaneous equations in 2 unknowns
vertical angles
standard deviation
50. Parallel and never intersect - they have no solution at all - they are parallel with the same slope
times
odd
y intercept
inconsistent lines