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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. 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
all acute angles are equal and all obtuse angles are equal
itself
properties of a square
2. (3+5) +6= 3+ (5+6) and (3x5)6= 3(5x6)
associative axiom of addition and multiplication
probability
set
equals
3. Any integer is divisible by 3 - if
determining if a number is prime
equilateral triangle
a+b+d=c+d
the sum of its digits is divisible by 3
4. The sume of x and y
x + y
the last two digits of the number make a number that is divisible by 4
vertical angles
1
5. Intersect at only one point - the point is the only solution to the pair of equations
approx sums
equilateral triangle
consistent lines
the sum of its digits is divisible by 9
6. In a triangle - the greatest angles lies
perpendicular bisectors
central angle
(y-x/x)100
opposite the greatest side
7. 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
right triangle
opposite the greatest side
finding the union of sets
x + y
8. Between 90° and 180°
n= mx/100
obtuse angle
3.16
trapezoid
9. Is the set of the first components of the ordered pairs.
isosceles triangle
right triangle
domain of a relation
angle bisector
10. Diagonal= sv2
x>y
the last digit is either 0 or 5
even
diagonal of a square
11. x > y or y< x
rectangle
x>y
x is greater than y
right triangle
12. The increase from x to y
when finding a solution set
right triangle
y-x
-y
13. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)
permutations
range of a relation
properties of a square
simultaneous equations
14. Between 180° and 360°
a
is a subset of
reflex angle
1.4
15. The decrease from x to y
hexagon
x-y
x + y
equilateral triangle
16. Is always a right angle.
y intercept
a+b+d=c+d
w<0 and x>y
angle inscribed in semicircle
17. Angle whose sides are two chords. The vertex of the angles lies on the circumference of the circle. The number of degrees of the angle is equal to 1/2 the intercepted arc
a relation is a function
xy + xz
y-x
inscribed angle
18. 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.
perpendicular bisectors
x<0 and z=x+y
the third side
x>y and y>z
19. x younger than y
the last digit is either 0 or 5
w<0 and x>y
x - y
1.4
20. In transversals
all acute angles are equal and all obtuse angles are equal
it is also divisible by 2 and 3
perpendicular
central angle
21. Is - as - was - has - cost
rectangular solid
equals
even
implies
22. y years from now
1 - 3 - 5 - 7 - 9
when finding a solution set
angle a and angle b = angle d
+y
23. Area= bh perimeter= 2a +2b
the percent of increase
right triangle
parallelogram
properties of a square
24. The product of an even number of negative numbers is
permutations
expression of an odd number
positive
average
25. (x+y) (x-y)
tangent
180 degrees
a set
x²-y²
26. Any arc length is less than
regular polygon properties
hexagon
360 degrees
angle inscribed in semicircle
27. Sin 30°
b+d>c+e
the last three numbers are divisible by 8
1/2
n= mx/100
28. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
pythagorean theorem
1.4
diameter
square
29. Area= 1/2bh perimeter= a+b+c
triangle
average
distributive axiom
c x (john'S age)
30. Volume= e(edge)³ surface area= 6e²
consistent lines
y-x
triangle
cube
31. x + y
x²-2xy+y²
1
x and y
xy-xz
32. The angles opposite to sides that are equal in length have
distributive axiom
equal angles
cube
positive
33. Parallel and never intersect - they have no solution at all - they are parallel with the same slope
vertical angles
x is less than y
odd
inconsistent lines
34. Is drawn from the vertices perpendicular to the opposite sides. The lengths of these lines are useful in calculating the area of the trinagle since the area of the triangle is 1/2bh and the height and the _____are the same.
a set
altitude of a triangle
xy-xz
acute angle
35. 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.
central angle
x+y/xy
the last three numbers are divisible by 8
consistent lines
36. Two tangents to a circle from the same point outside of the circle are always
standard deviation
no solutions
v3/2 or .87
equal
37. ?
or
properties of a rectangle
diameter
x + y
38. ?
and
never divide by zero
Axioms
regular polygon properties
39. Any line that connects two points on a circle.
x - y
chord
-y
trapezoid
40. The percent increase from x to y (y>x)
x²+ 2xy+y²
and
1 - 3 - 5 - 7 - 9
(y-x/x)100
41. A°
two solutions
x<0
1
even
42. If b²-4ac < 0 - there are
no solutions
triangle or straight line
parallel
the square of x
43. A collection of anything - numbers - letters - objects - etc. written within brackets { } two are equal if they contain the same elements.(order does not matter)
a set
circle
set
vertical angles
44. Ax= by + C
x + y
n percent greater than x
simultaneous equations in 2 unknowns
and
45. 1-v3- 2 (90-30-60)
belongs to
right triangle
w>0 and x>y
the sum of its digits is divisible by 9
46. V10
reflex angle
3.16
isosceles
obtuse angle
47. If two lines are parallel - the slope of one is
isosceles
equal to the slope of the other
closed set
n percent less than x
48. x+w> y+z
x>y and w>z
acute angle
triangle
triangle or straight line
49. 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)
triangle or straight line
v3/2 or .87
combinations
x percent
50. 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.
w>0 and x>y
equal
regular polygon properties
rectangular solid
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