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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. ? if a side is equal to b side then - the opposite corresponding angles are
equal
reflex angle
c x (john'S age)
+y
2. 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)
coinciding lines
properties of a rhombus
simultaneous equations
combinations
3. x + y
x and y
(y-x/x)100
right triangle
probability
4. Area = ?r² circumference(perimeter)= 2?r
straight angle
hemisphere
pythagorean theorem
circle
5. (amount of decrease/original amount) x 100
±vx
right triangle
the percent of decrease
v(x2-x1)²+ (y2-y1)²
6. If b²-4ac < 0 - there are
a set
w>0 and x>y
360 degrees
no solutions
7. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
similar triangles
vertical angles
the percent of increase
x intercept
8. Area= s² perimeter= 4s
x-y
polygon
square
a relation is a function
9. One angle is equal 90° and the other two angles are equal to the sum of 90°
radius of a circle
a?n
right triangle
diagonal of a square
10. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
cylinder
square
expression of an odd number
pythagorean theorem
11. 1. round each number being added to one more place than it is being asked. 2. add the rounded numbers. 3. round off the sum to the desired number of places
right triangle
simultaneous equations in 2 unknowns
closed set
approx sums
12. A chord through the center of the circle
standard deviation
diameter
sphere
right triangle
13. In transversals
and
all acute angles are equal and all obtuse angles are equal
the perpendicular distance
triangle
14. z>y
polygon
associative axiom of addition and multiplication
y intercept
x<0 and z=x+y
15. 7-24-25
right triangle
x percent
3.16
x and y
16. Product of two odd numbers is
x - y
is a subset of
x²-2xy+y²
odd
17. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
v(x2-x1)²+ (y2-y1)²
Axioms
then side b > side a
opposite the greatest side
18. 5-12-13
the percent of increase
right triangle
the square of x
one solution
19. Sum of two odd numbers is
solution set
even
never divide by zero
semicircle
20. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
simultaneous equations in 2 unknowns
x²-y²
then side b > side a
associative axiom of addition and multiplication
21. Between 90° and 180°
a relation is a function
isosceles triangle
obtuse angle
x + y
22. Integer is divisible by 2
is a subset of
if the last digit of the number is 0 -2 -4 -6 -8
reflex angle
always positive or zero
23. ?
the perpendicular distance
and
x intercept
cube
24. 3(4+1)= 3 x 4 + 3 x 1
Axioms
diameter of circle
distributive axiom
x²-y²
25. x < y or y> x
tangent
solution set
x is less than y
even
26. 8-15-17
opposite the greatest side
right triangle
it is also divisible by 2 and 3
1.4
27. 9-40-41
right triangle
(x-y/x)100
x>y and w>z
diameter
28. C times as old as john
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183
29. When the elements of a set are ordered pairs
isosceles triangle
relation
properties of a rectangle
angle bisector
30. Area= 1/4s² v3 perimeter= 3s altitude= 1/2s v3
a?n
rectangular solid
equilateral triangle
null set
31. The distance from the center of the circle
radius
b+d>c+e
Axioms
perpendicular
32. The sum of the interior angles is
isosceles triangle
when finding a solution set
180 degrees
1.4
33. x²
w<0 and x>y
the square of x
equal
x is greater than y
34. 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.
coinciding lines
n percent less than x
area of a triangle
central angle
35. 1/2d
right triangle
v3/2 or .87
rectangle
radius of a circle
36. Write down every member in one or both of the sets - the union of two sets is a new set. the union of set A and B is written as A?B
finding the union of sets
polygon
equal
commutative axiom of addition and multiplication
37. What % of m is n
b is the y-intercept
right triangle
(x/100)m= n
properties of parallelograms
38. C²= a²+b² and angle x and y are equal to 90°
radius
right triangle
acute angle
triangle or straight line
39. Parallel and never intersect - they have no solution at all - they are parallel with the same slope
x-y
inconsistent lines
radius
slope of a line joining two points
40. x(y-z)
similar triangles
xy-xz
consistent lines
polygon
41. ?
supplementary angles
properties of a rhombus
belongs to
all acute angles are equal and all obtuse angles are equal
42. The percent increase from x to y (y>x)
equal to the sum of the measures of the remote exterior angles
circle
(y-x/x)100
parallelogram
43. The whole equals
the sum of parts
equal
parallelogram
right triangle
44. Any integer is divisible by 8 if
x percent
quadratic equations
solution set
the last three numbers are divisible by 8
45. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
xy + xz
odd
hemisphere
xy-xz
46. M=number of favorable ways n= total number of ways (two events occurring is the prob of the first times the prob of the second)
1/2
probability
isosceles
diagonal of a square
47. V3
combinations
x<0 and z=x+y
circle
1.7
48. Any integer is divisible by 9 - if
the sum of its digits is divisible by 9
average
v2/2 or .71
reflex angle
49. The point where the line crosses the x-axis - y will always = 0 in this case
closed set
the sum of its digits is divisible by 3
x<0 and z=x+y
x intercept
50. ?
properties of a rhombus
equilateral triangle
always positive or zero
angle