SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. x(y+z)
xy + xz
find the intersection of two sets
reflex angle
cube
2. 2k
expression of an even number
v2/2 or .71
even
hexagon
3. 1-v3- 2 (90-30-60)
equilateral triangle
properties of parallelograms
right triangle
simultaneous equations in 2 unknowns
4. 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
right triangle
permutations
approx sums
5. 3-4-5
set
cube
right triangle
area of a triangle
6. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
similar triangles
isosceles triangle
equals
Axioms
7. C²= a²+b² and angle x and y are equal to 90°
relation
right triangle
when finding a solution set
the percent of decrease
8. 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.
the last three numbers are divisible by 8
hexagon
x is greater than y
is a subset of
9. Volume= e(edge)³ surface area= 6e²
cube
1/2
1 - 3 - 5 - 7 - 9
the percent of decrease
10. The sume of x and y
x and y
x + y
rectangular solid
always positive or zero
11. x+w> y+z
pythagorean theorem
vertical angles
x>y and w>z
xy< 0
12. V2/2- v2/2 - 1 (90-45-45)
isosceles triangle
chord
x²+ 2xy+y²
greater than c
13. The percent increase from x to y (y>x)
(y-x/x)100
determining if a number is prime
always positive or zero
a set
14. 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)
angle a and angle b = angle d
angle bisector
parallelogram
a set
15. 180°
square
any variable
straight angle
22/7 or 3.14
16. Any integer is divisible by 5 if
then side b > side a
x + y
the last digit is either 0 or 5
hexagon
17. Wx>wy
xy>0
the last two digits of the number make a number that is divisible by 4
+y
w>0 and x>y
18. The point where the line crosses the y-axis - x will always = 0 in this case
hemisphere
coinciding lines
y intercept
xy + xz
19. If two lines are perpendicular - the slope of one is the
x + y
negative reciprocal of the other
altitude of a triangle
angle bisector
20. (x1+ x2/2) - (y1+y2/2) Each coordinate of the midpoint is equal to the average of the corresponding cordinates of the endpoints
x - y
central angle
midpoint of a line segment joining 2 parts
1.7
21. 1-1-v2 (90-45-45)
right triangle
v(x2-x1)²+ (y2-y1)²
x + y
y angle< x angle
22. The lines that divide each angle of the triangle into two equal parts. these lines meet in a point that is the center of a circle inscribed in the triangle.
angle bisector
(y-x/x)100
x is less than y
pythagorean theorem
23. x < y or y> x
isosceles
similar triangles
x is less than y
right triangle
24. 2k + 1
1
the last three numbers are divisible by 8
expression of an odd number
a?n
25. 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
all acute angles are equal and all obtuse angles are equal
inscribed angle
opposite the greatest side
altitude of a triangle
26. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
xy< 0
quadratic equations
all acute angles are equal and all obtuse angles are equal
if two sets have no elements in common
27. Of
polygon
angle inscribed in semicircle
times
range of a relation
28. 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
finding the union of sets
equilateral triangle
±vx
simultaneous equations in 2 unknowns
29. x>0 and y>0 or x<0 and y<0
xy>0
the last digit is either 0 or 5
range of a relation
odd
30. A/A¹ = B/B¹= C/C¹
n= mx/100
approx sums
similar triangles
find the intersection of two sets
31. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
or
vertical angles
pythagorean theorem
if the last digit of the number is 0 -2 -4 -6 -8
32. When the elements of a set are ordered pairs
right triangle
x is less than y
relation
midpoint of a line segment joining 2 parts
33. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
slope of a line joining two points
right triangle
x²-2xy+y²
v(x2-x1)²+ (y2-y1)²
34. If two lines are parallel - the slope of one is
one solution
diagonal of a square
even
equal to the slope of the other
35. Diagonal= sv2
equilateral triangle
permutations
diagonal of a square
all acute angles are equal and all obtuse angles are equal
36. ?if y angle< x angle - then
reflex angle
x-y
a side< b side
0 - 2 - 4 - 6 - 8
37. Area= 1/2?r2 length= 1/2?d= ?r perimeter= d(1/2? +1)
relation
chord
x + y
semicircle
38. 1/y-1/x x -y ? 0
w>0 and x>y
x-y/xy
pythagorean theorem
±vx
39. Every set is a subset of
xy-xz
-y
itself
null set
40. 8-15-17
right triangle
x>y
probability
hexagon
41. The difference between x and y
angle a and angle b = angle d
all acute angles are equal and all obtuse angles are equal
tangent
x - y
42. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
the last three numbers are divisible by 8
vertical angles
angle inscribed in semicircle
right triangle
43. ?
22/7 or 3.14
even
midpoint of a line segment joining 2 parts
n percent greater than x
44. 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.
triangle
central angle
circle
negative reciprocal of the other
45. Sin 30°
1/2
x-y
circle
360 degrees
46. (sum of individual quantities or measures/ total number of quantities or measures)
right triangle
average
right angle
n percent greater than x
47. Ax= by + C
right triangle
triangle or straight line
simultaneous equations in 2 unknowns
x²-2xy+y²
48. (amount of increase/original amount) x 100
(x-y/x)100
even
the percent of increase
hemisphere
49. Wx<wy
right triangle
w>0 and x>y
always positive or zero
w<0 and x>y
50. The case where the two equations are equivalent (just two different forms of the same mathematical relation). Any point that satisfies either of the equations - automatically satisfies both
the sum of its digits is divisible by 3
angle bisector
y angle< x angle
coinciding lines