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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. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
right triangle
n percent less than x
find the intersection of two sets
parallel
2. B²-4ac = 0 there is
one solution
angle bisector
x + y
equilateral triangle
3. The percent increase from x to y (y>x)
(y-x/x)100
domain of a relation
when finding a solution set
angle inscribed in semicircle
4. The point where the line crosses the y-axis - x will always = 0 in this case
parallelogram
x²-2xy+y²
any variable
y intercept
5. When two parallel lines are crossed by a third straight line (transversal) - then
vertical angles
180 degrees
all acute angles are equal and all obtuse angles are equal
triangle
6. If b²-4ac < 0 - there are
no solutions
set
always positive or zero
the last three numbers are divisible by 8
7. 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*)
closed set
the percent of increase
tangent
itself
8. 1/an
x²+ 2xy+y²
a?n
the last three numbers are divisible by 8
x is less than y
9. All even numbers end in the digits of
±vx
0 - 2 - 4 - 6 - 8
x<0
1
10. If b²-4ac > 0 there are
odd
two solutions
range of a relation
chord
11. x>0 and y>0 or x<0 and y<0
a<x<b
3.16
regular polygon properties
xy>0
12. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
cylinder
altitude of a triangle
c x (john'S age)
inconsistent lines
13. xw> yz
x>y>0 and w>z>0
v(x2-x1)²+ (y2-y1)²
midpoint of a line segment joining 2 parts
v3/2 or .87
14. V2/2- v2/2 - 1 (90-45-45)
vertical angles
approx square roots
isosceles triangle
finding the union of sets
15. ?if y angle< x angle - then
hemisphere
parallel
a side< b side
x intercept
16. ?
right triangle
x+y/xy
belongs to
parallelogram
17. Set of solutions to an equation
solution set
the last three numbers are divisible by 8
the sum of its digits is divisible by 3
angle
18. If y²= x - then y =
±vx
distributive axiom
tangent
w<0 and x>y
19. 1-v3- 2 (90-30-60)
equal
right triangle
the last digit is either 0 or 5
isosceles triangle
20. Between 180° and 360°
properties of a rhombus
x + y
reflex angle
is a subset of
21. The product of an even number of negative numbers is
x + y
positive
properties of a rhombus
vertical angles
22. 360°
xy-xz
circle
a set
v2/2 or .71
23. (amount of increase/original amount) x 100
the percent of increase
right angle
circle
the percent of decrease
24. 1-1-v2 (90-45-45)
x-y/xy
xy< 0
right triangle
perpendicular
25. Sin 45°
set
xy + xz
v2/2 or .71
(y-x/x)100
26. x(y-z)
xy-xz
x + y
x>y and w>z
a?n
27. 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.
approx products
the perpendicular distance
central angle
y-x
28. 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)
set
expression of an odd number
angle a and angle b = angle d
vertical angles
29. A line that is perpendicular to a radius and that passes through only one point of the circle.
x is greater than y
sphere
tangent
pythagorean theorem
30. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
if two sets have no elements in common
1.4
Axioms
(x/100)m= n
31. If the base angles of a triangle are equal - the triangle is
combinations
sphere
always positive or zero
isosceles
32. Any line that connects two points on a circle.
altitude of a triangle
chord
always positive or zero
positive
33. Is a subset of every set
then side b > side a
determining if a number is prime
null set
x + y
34. Any integer is divisible by 3 - if
the sum of its digits is divisible by 3
solution set
(y-x/x)100
right triangle
35. Any number squared or raised to an even power is
the sum of parts
x²-y²
if the last digit of the number is 0 -2 -4 -6 -8
always positive or zero
36. Volume= e(edge)³ surface area= 6e²
v2/2 or .71
right triangle
cube
simultaneous equations in 2 unknowns
37. Sum of two odd numbers is
pythagorean theorem
greater than c
even
a?n
38. 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)
y-x
equal
probability
x - y
39. The distance from the center of the circle
radius
equilateral triangle
properties of parallelograms
n percent greater than x
40. Between 90° and 180°
triangle
circle
obtuse angle
negative
41. 9-40-41
c x (john'S age)
straight angle
the last digit is 0
right triangle
42. 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.
properties of a rhombus
the sum of its digits is divisible by 3
approx square roots
perpendicular bisectors
43. Area= 1/2bh perimeter= a+b+c
triangle
associative axiom of addition and multiplication
central angle
v2/2 or .71
44. y years ago
-y
a?n
y angle< x angle
even
45. The product of x and y
two solutions
v3/2 or .87
average
xy
46. Any arc length is less than
360 degrees
x²-2xy+y²
isosceles triangle
xy< 0
47. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
if the last digit of the number is 0 -2 -4 -6 -8
pythagorean theorem
times
equal angles
48. The percent decrease from x to y ( y<x)
(x-y/x)100
the percent of increase
then side b > side a
find the intersection of two sets
49. Sin 60°
x<0 and z=x+y
xy
approx square roots
v3/2 or .87
50. x < y or y> x
x is less than y
trapezoid
slope of a line joining two points
1.7
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