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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. The sume of x and y
finding the union of sets
slope of a line joining two points
+y
x + y
2. 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
hemisphere
equal
x>y
3. B²-4ac = 0 there is
xy-xz
midpoint of a line segment joining 2 parts
the square of x
one solution
4. Product of an even number and any other number is
even
implies
the sum of its digits is divisible by 3
equal to the sum of the measures of the remote exterior angles
5. If b²-4ac > 0 there are
polygon
a
equal to the sum of the measures of the remote exterior angles
two solutions
6. Sin 60°
v3/2 or .87
right triangle
times
x + y
7. 9-40-41
right triangle
properties of a square
a+b+d=c+d
equilateral triangle
8. If the base angles of a triangle are equal - the triangle is
isosceles
x<0 and z=x+y
y-x
triangle or straight line
9. y years from now
right triangle
+y
average
vertical angles
10. 90°
right triangle
right angle
a+b+d=c+d
22/7 or 3.14
11. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
implies
hemisphere
trapezoid
(y-x/x)100
12. Any integer is divisible by 9 - if
the sum of its digits is divisible by 9
x<0 and z=x+y
always positive or zero
properties of a rhombus
13. Ax= by + C
x²+ 2xy+y²
simultaneous equations in 2 unknowns
negative reciprocal of the other
distributive axiom
14. V2
1.4
is a subset of
isosceles triangle
v3/2 or .87
15. (amount of increase/original amount) x 100
x+y/xy
approx sums
the percent of increase
equals
16. Intersect at only one point - the point is the only solution to the pair of equations
equilateral triangle
consistent lines
Axioms
a?n
17. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
hemisphere
coinciding lines
all acute angles are equal and all obtuse angles are equal
equilateral triangle
18. All three sides and all three angles are equal
equilateral triangle
x - y
x>y>0 and w>z>0
even
19. The whole equals
the sum of parts
right triangle
parallelogram
equals
20. 180°
simultaneous equations
x-y
straight angle
when finding a solution set
21. 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
always positive or zero
reflex angle
rectangular solid
properties of parallelograms
22. 1/2d
angle bisector
radius of a circle
permutations
never divide by zero
23. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
a
properties of a square
v(x2-x1)²+ (y2-y1)²
x%
24. x>0 and y>0 or x<0 and y<0
xy>0
the sum of parts
range of a relation
pythagorean theorem
25. Is the set of the second components of the ordered pairs
range of a relation
x intercept
negative
find the intersection of two sets
26. The product of an even number of negative numbers is
x>y
simultaneous equations in 2 unknowns
positive
consistent lines
27. 360°
xy>0
greater than c
circle
properties of parallelograms
28. ?
180 degrees
probability
properties of parallelograms
implies
29. ?
pythagorean theorem
straight angle
perpendicular
simultaneous equations
30. 5+3= 3+5 and 5 x 3= 3 x 5
x-y/xy
when finding a solution set
altitude of a triangle
commutative axiom of addition and multiplication
31. If the each element of the domain occurs only once as a FIRST component
a<x<b
the last three numbers are divisible by 8
a relation is a function
negative reciprocal of the other
32. In a triangle - the greatest angles lies
22/7 or 3.14
chord
opposite the greatest side
expression of an even number
33. ?
belongs to
x-y
angle
a side< b side
34. ?
odd
or
distributive axiom
right triangle
35. Area= l x w perimeter = (2l)(2w)
x and y
the square of x
rectangle
consistent lines
36. A line that is perpendicular to a radius and that passes through only one point of the circle.
belongs to
right triangle
tangent
null set
37. All odd numbers end in the digits of
medians of a triangle
isosceles
(y-x/x)100
1 - 3 - 5 - 7 - 9
38. Distributive axiom - commutative axiom of addition and multiplication - associative axioms of addition and multiplication
-y
trapezoid
commutative axiom of addition and multiplication
Axioms
39. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
1.7
x + y
hexagon
isosceles triangle
40. 1. subtract each number from the average of the numbers 2. square the result of each of the numbers 3. add all those results and then divide by how many numbers you originally had. 4. take the square root of that result
standard deviation
a set
even
a+b+d=c+d
41. Volume= 4/3?r² surface area= 4?r²
the sum of its digits is divisible by 9
odd
sphere
-y
42. 1/x + 1/y x -y ? 0
x is greater than y
quadratic equations
similar triangles
x+y/xy
43. 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*)
(x-y/x)100
v(x2-x1)²+ (y2-y1)²
closed set
the square of x
44. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
a relation is a function
midpoint of a line segment joining 2 parts
even
the last two digits of the number make a number that is divisible by 4
45. Any integer is divisible by 10 - if
xy + xz
perpendicular bisectors
x<0
the last digit is 0
46. x/100
the last two digits of the number make a number that is divisible by 4
equals
x percent
it is also divisible by 2 and 3
47. Wx<wy
closed set
x - y
w<0 and x>y
central angle
48. Angles directly across each other are equal
b+d>c+e
inscribed angle
vertical angles
rectangle
49. 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
consistent lines
approx square roots
right triangle
medians of a triangle
50. Diagonals are perpendicular to each other and bisect the vertex angles 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 diagonal
x and y
find the intersection of two sets
it is also divisible by 2 and 3
properties of a rhombus