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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. ?
a<x<b
radius of a circle
angle
triangle or straight line
2. 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
x + y
triangle or straight line
right triangle
finding the union of sets
3. 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
properties of a rhombus
angle a and angle b = angle d
tangent
permutations
4. ?
isosceles
one solution
belongs to
similar triangles
5. All odd numbers end in the digits of
permutations
1 - 3 - 5 - 7 - 9
triangle or straight line
obtuse angle
6. The measure of an interior angle is
average
x>y
equal to the sum of the measures of the remote exterior angles
xy-xz
7. The sume of x and y
approx sums
x + y
0 - 2 - 4 - 6 - 8
distributive axiom
8. ?
(x-y/x)100
22/7 or 3.14
approx products
0 - 2 - 4 - 6 - 8
9. The product of an odd number of negative numbers is
the last three numbers are divisible by 8
x²+ 2xy+y²
cube
negative
10. Angles that equal 180 degrees
right triangle
belongs to
supplementary angles
xy
11. Any integer is divisible by 4 - if
+y
parallel
greater than c
the last two digits of the number make a number that is divisible by 4
12. What % of m is n
equal
diagonal of a square
b is the y-intercept
(x/100)m= n
13. x(y-z)
xy-xz
3.16
acute angle
n= mx/100
14. Which - what
vertical angles
probability
positive
any variable
15. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
reflex angle
the last three numbers are divisible by 8
trapezoid
slope of a line joining two points
16. M= y2-y1/x2-x1
equal to the sum of the measures of the remote exterior angles
slope of a line joining two points
properties of a rectangle
medians of a triangle
17. Two tangents to a circle from the same point outside of the circle are always
permutations
domain of a relation
associative axiom of addition and multiplication
equal
18. 180°
equal
triangle or straight line
vertical angles
inverse of a relation
19. 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
the last three numbers are divisible by 8
standard deviation
the sum of its digits is divisible by 3
vertical angles
20. x more than y
x + y
n percent greater than x
solution set
relation
21. 9-40-41
right triangle
then side b > side a
angle bisector
rectangular solid
22. Area= l x w perimeter = (2l)(2w)
rectangle
x>y and w>z
the last two digits of the number make a number that is divisible by 4
quadratic equations
23. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
associative axiom of addition and multiplication
x-y
pythagorean theorem
quadratic equations
24. Of
x-y
times
set
any variable
25. ?
midpoint of a line segment joining 2 parts
implies
obtuse angle
n percent less than x
26. 2k
belongs to
expression of an even number
the third side
negative reciprocal of the other
27. A subset of a set is
permutations
(x-y/x)100
1.7
a set
28. Any arc length is less than
x + y
obtuse angle
x-y/xy
360 degrees
29. ?
diameter
perpendicular
x intercept
y-x
30. x/100
x percent
inscribed angle
(y-x/x)100
x<0 and z=x+y
31. 1-1-v2 (90-45-45)
a set
1.4
parallelogram
right triangle
32. 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
similar triangles
x>y and y>z
properties of parallelograms
x intercept
33. 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
equilateral triangle
(y-x/x)100
xy>0
34. 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.
no solutions
central angle
1
equals
35. 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)
if two sets have no elements in common
reflex angle
angle a and angle b = angle d
Axioms
36. C times as old as john
37. The percent decrease from x to y ( y<x)
odd
cube
1/2
(x-y/x)100
38. Parallel and never intersect - they have no solution at all - they are parallel with the same slope
angle inscribed in semicircle
v3/2 or .87
(x/100)m= n
inconsistent lines
39. V2
the sum of parts
1 - 3 - 5 - 7 - 9
1.4
x%
40. 360°
circle
perpendicular
x%
simultaneous equations in 2 unknowns
41. If b²-4ac > 0 there are
b is the y-intercept
two solutions
acute angle
tangent
42. ?if y angle< x angle - then
xy< 0
a side< b side
rectangle
vertical angles
43. 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
Axioms
coinciding lines
radius
acute angle
44. Any number squared or raised to an even power is
always positive or zero
a side< b side
x>y and w>z
chord
45. Area= 1/4s² v3 perimeter= 3s altitude= 1/2s v3
equilateral triangle
when finding a solution set
is a subset of
approx products
46. V3
1.7
-y
similar triangles
y angle< x angle
47. 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.
approx sums
opposite the greatest side
the sum of its digits is divisible by 9
altitude of a triangle
48. Side a +side b of a ? is
a+b+d=c+d
isosceles
if two sets have no elements in common
greater than c
49. C²= a²+b² and angle x and y are equal to 90°
midpoint of a line segment joining 2 parts
right triangle
positive
equilateral triangle
50. 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
the last three numbers are divisible by 8
inscribed angle
the percent of decrease
relation