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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 two lines are parallel - the slope of one is
x>y>0 and w>z>0
circle
equal to the slope of the other
perpendicular bisectors
2. The decrease from x to y
approx products
equilateral triangle
x percent
x-y
3. A¹
y-x
a
(y-x/x)100
straight angle
4. (sum of individual quantities or measures/ total number of quantities or measures)
equal
average
0 - 2 - 4 - 6 - 8
never divide by zero
5. Any integer is divisible by 5 if
approx sums
no solutions
the last digit is either 0 or 5
n percent greater than x
6. x(y+z)
similar triangles
simultaneous equations
isosceles
xy + xz
7. If b²-4ac < 0 - there are
no solutions
a side< b side
xy + xz
the last digit is either 0 or 5
8. Any integer is divisible by 10 - if
x>y
x + y
central angle
the last digit is 0
9. x + (n/100)x
-y
n percent greater than x
is a subset of
1.4
10. 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
properties of a square
approx square roots
n= mx/100
equals
11. 5-12-13
right triangle
xy + xz
times
negative
12. The product of an even number of negative numbers is
positive
inscribed angle
y angle< x angle
closed set
13. Any arc length is less than
rectangle
properties of a square
360 degrees
all acute angles are equal and all obtuse angles are equal
14. V3
odd
equals
properties of parallelograms
1.7
15. The difference between x and y
similar triangles
x is less than y
x - y
properties of parallelograms
16. 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*)
n= mx/100
commutative axiom of addition and multiplication
reflex angle
closed set
17. A chord through the center of the circle
standard deviation
two solutions
diameter
never divide by zero
18. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
midpoint of a line segment joining 2 parts
angle a and angle b = angle d
-y
diameter of circle
19. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
equilateral triangle
x%
a+b+d=c+d
quadratic equations
20. 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
1.4
then side b > side a
x²-y²
21. Sin 60°
radius
greater than c
perpendicular bisectors
v3/2 or .87
22. Side a +side b of a ? is
greater than c
parallelogram
consistent lines
simultaneous equations
23. 1. solve the equation or inequality 2. use ONLY the solutions which satisfy the condition required - the set of all x such that x is greater than or equal to 10 R= {x: x=10}
xy< 0
when finding a solution set
semicircle
radius
24. 3-4-5
x - y
right triangle
n= mx/100
all acute angles are equal and all obtuse angles are equal
25. Area= 1/2?r2 length= 1/2?d= ?r perimeter= d(1/2? +1)
c x (john'S age)
determining if a number is prime
semicircle
x%
26. x +z > y+z
greater than c
right triangle
x>y
positive
27. Volume= 2/3?r² surface area= 2?r² (w/o bases) or 3?r² (with bases)
hemisphere
angle inscribed in semicircle
x + y
x+y/xy
28. Area= 1/2bh perimeter= a + b+ c hypotenuse= c²= b²+a²
right triangle
relation
similar triangles
isosceles triangle
29. All three sides and all three angles are equal
the last two digits of the number make a number that is divisible by 4
equilateral triangle
belongs to
perpendicular
30. V2/2- v2/2 - 1 (90-45-45)
Axioms
b+d>c+e
isosceles triangle
approx products
31. y years from now
commutative axiom of addition and multiplication
y-x
a<x<b
+y
32. 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.
1
altitude of a triangle
positive
right triangle
33. Between 90° and 180°
y angle< x angle
the sum of its digits is divisible by 3
diameter
obtuse angle
34. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
null set
hemisphere
pythagorean theorem
odd
35. 1/y-1/x x -y ? 0
y-x
x-y/xy
a side< b side
x>y
36. 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
simultaneous equations
right triangle
180 degrees
properties of a rectangle
37. Volume= 4/3?r² surface area= 4?r²
x + y
positive
sphere
y-x
38. Intersect at only one point - the point is the only solution to the pair of equations
implies
consistent lines
vertical angles
a relation is a function
39. x > y or y< x
angle
x is greater than y
determining if a number is prime
any variable
40. Between 180° and 360°
reflex angle
the third side
x>y>0 and w>z>0
Axioms
41. A/A¹ = B/B¹= C/C¹
x>y
x²+ 2xy+y²
triangle
similar triangles
42. 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)
right triangle
x+y/xy
angle a and angle b = angle d
times
43. All even numbers end in the digits of
n percent less than x
opposite the greatest side
right triangle
0 - 2 - 4 - 6 - 8
44. 180°
right triangle
implies
triangle or straight line
1/2
45. Wx<wy
w<0 and x>y
right triangle
y-x
approx square roots
46. 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.
domain of a relation
regular polygon properties
approx sums
the third side
47. The percent decrease from x to y ( y<x)
x>y and y>z
(x-y/x)100
triangle
radius
48. 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
range of a relation
relation
x + y
standard deviation
49. Is the relation with ALL ordered pairs REVERSED.
x-y/xy
inverse of a relation
the sum of parts
equal to the slope of the other
50. B²-4ac = 0 there is
1/2
v2/2 or .71
average
one solution