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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. Between 90° and 180°
obtuse angle
x and y
straight angle
x>y and w>z
2. The measure of an interior angle is
the square of x
equal to the sum of the measures of the remote exterior angles
the last digit is 0
regular polygon properties
3. 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.
relation
xy-xz
altitude of a triangle
even
4. 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)
then side b > side a
the percent of increase
a set
probability
5. ? if a side is equal to b side then - the opposite corresponding angles are
average
central angle
the sum of its digits is divisible by 3
equal
6. If ?B > ?A - then
permutations
the third side
x + y
then side b > side a
7. 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
never divide by zero
it is also divisible by 2 and 3
1 - 3 - 5 - 7 - 9
8. 1/y-1/x x -y ? 0
even
x-y/xy
set
rectangle
9. x less than y
square
midpoint of a line segment joining 2 parts
positive
y-x
10. 1/2bh
equal
area of a triangle
y angle< x angle
Axioms
11. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)
b+d>c+e
polygon
the third side
permutations
12. Is the set of the first components of the ordered pairs.
opposite the greatest side
domain of a relation
v2/2 or .71
±vx
13. The percent increase from x to y (y>x)
negative
set
slope of a line joining two points
(y-x/x)100
14. A pair of equations in two unknowns (each is graphed seperately and each is represented by a straight line)
right triangle
a?n
pythagorean theorem
simultaneous equations
15. 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.
hexagon
then side b > side a
equal angles
even
16. 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)
combinations
x + y
approx sums
a+b+d=c+d
17. A chord through the center of the circle
x>y>0 and w>z>0
v3/2 or .87
trapezoid
diameter
18. x more than y
x + y
x and y
x+y/xy
the last digit is either 0 or 5
19. x>z
angle inscribed in semicircle
even
straight angle
x>y and y>z
20. Any integer is divisible by 6 if
cylinder
1
it is also divisible by 2 and 3
the perpendicular distance
21. 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.
equilateral triangle
the last three numbers are divisible by 8
perpendicular bisectors
angle bisector
22. Ax= by + C
right triangle
+y
simultaneous equations in 2 unknowns
a set
23. 8-15-17
right triangle
reflex angle
equilateral triangle
it is also divisible by 2 and 3
24. Wx>wy
the last three numbers are divisible by 8
w>0 and x>y
approx products
acute angle
25. Then their intersection is the null or empty set - written as Ø
x²-y²
perpendicular bisectors
if two sets have no elements in common
equilateral triangle
26. Area= s² perimeter= 4s
square
right triangle
diagonal of a square
diameter of circle
27. 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
properties of a rectangle
negative
diameter of circle
right triangle
28. x > y or y< x
y-x
x is greater than y
1/2
properties of a rectangle
29. The product of an odd number of negative numbers is
negative
equilateral triangle
equal
central angle
30. The increase from x to y
the percent of increase
y-x
x + y
equal angles
31. Area= bh perimeter= 2a +2b
rectangle
circle
odd
parallelogram
32. x + (n/100)x
right triangle
then side b > side a
even
n percent greater than x
33. Any number squared or raised to an even power is
always positive or zero
n percent less than x
c x (john'S age)
positive
34. 180°
one solution
straight angle
right triangle
even
35. The difference between x and y
n percent greater than x
is a subset of
reflex angle
x - y
36. A¹
right triangle
a
all acute angles are equal and all obtuse angles are equal
acute angle
37. Product of an even number and any other number is
straight angle
even
equal to the sum of the measures of the remote exterior angles
all acute angles are equal and all obtuse angles are equal
38. Any arc length is less than
360 degrees
right triangle
x<0
finding the union of sets
39. Sum of two even numbers is
chord
even
22/7 or 3.14
circle
40. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
cylinder
equal to the sum of the measures of the remote exterior angles
1 - 3 - 5 - 7 - 9
all acute angles are equal and all obtuse angles are equal
41. x>0 and y>0 or x<0 and y<0
xy>0
all acute angles are equal and all obtuse angles are equal
a side< b side
isosceles
42. xn<0 if n is odd and xn>0 if n is even
x<0
opposite the greatest side
xy-xz
inverse of a relation
43. The quotient of any quantity (except 0) divided by zero is infinity
set
right triangle
right triangle
never divide by zero
44. Which - what
any variable
a set
chord
if two sets have no elements in common
45. x/100
isosceles triangle
x%
right triangle
x>y and y>z
46. In transversals
all acute angles are equal and all obtuse angles are equal
similar triangles
find the intersection of two sets
commutative axiom of addition and multiplication
47. Volume=lwh surface area= 2wh + 2hl + 2lw
inconsistent lines
x-y
the percent of decrease
rectangular solid
48. x +z > y+z
triangle
x>y
semicircle
polygon
49. 1/x + 1/y x -y ? 0
x intercept
equal to the slope of the other
x>y
x+y/xy
50. In a triangle - the greatest angles lies
if the last digit of the number is 0 -2 -4 -6 -8
x%
angle inscribed in semicircle
opposite the greatest side