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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. 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)
the percent of decrease
probability
itself
isosceles
2. Side a +side b of a ? is
greater than c
right triangle
the perpendicular distance
hexagon
3. 3-4-5
altitude of a triangle
no solutions
a
right triangle
4. 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.
a
angle bisector
equal to the slope of the other
equilateral triangle
5. V3
equilateral triangle
range of a relation
acute angle
1.7
6. The length of a segment whose endpoints are (x1 -y1) and (x2 -y2)
v(x2-x1)²+ (y2-y1)²
square
one solution
a+b+d=c+d
7. A chord through the center of the circle
one solution
the percent of increase
diameter
odd
8. Any integer is divisible by 6 if
right triangle
x>y>0 and w>z>0
xy-xz
it is also divisible by 2 and 3
9. 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
inscribed angle
1
x²-2xy+y²
right triangle
10. In a triangle - the greatest angles lies
v3/2 or .87
and
opposite the greatest side
altitude of a triangle
11. A subset of a set is
closed set
a relation is a function
x>y and y>z
a set
12. x/100
x percent
b is the y-intercept
x - y
if two sets have no elements in common
13. A<x and x<b
distributive axiom
domain of a relation
±vx
a<x<b
14. y years ago
radius
rectangle
diameter
-y
15. (x+y) (x-y)
vertical angles
right triangle
x²-y²
relation
16. Two tangents to a circle from the same point outside of the circle are always
equal
equal to the sum of the measures of the remote exterior angles
x%
even
17. 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
x percent
x + y
properties of a rectangle
the last two digits of the number make a number that is divisible by 4
18. A+b=c+ d=d
a+b+d=c+d
range of a relation
relation
medians of a triangle
19. 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.
opposite the greatest side
regular polygon properties
times
it is also divisible by 2 and 3
20. (amount of increase/original amount) x 100
the percent of increase
expression of an odd number
x>y and y>z
percent
21. x+w> y+z
the sum of parts
x²+ 2xy+y²
inscribed angle
x>y and w>z
22. ?
reflex angle
and
y-x
percent
23. 1. round the numbers being multiplied to one more place than it is being asked. 2. Multiply the rounded off numbers 3. round of product to desired number of places
angle a and angle b = angle d
approx products
equal to the slope of the other
opposite the greatest side
24. x/100
w>0 and x>y
percent
x%
x and y
25. If two lines are perpendicular - the slope of one is the
negative reciprocal of the other
rectangle
x²-y²
equal
26. x= -b + vb²-4ac/2a and x = -b - vb²-4ac/2a
360 degrees
quadratic equations
w<0 and x>y
polygon
27. If b²-4ac < 0 - there are
one solution
no solutions
v(x2-x1)²+ (y2-y1)²
expression of an odd number
28. Between 180° and 360°
reflex angle
the last three numbers are divisible by 8
rectangle
x<0
29. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
cylinder
right triangle
xy + xz
diagonal of a square
30. The product of an odd number of negative numbers is
coinciding lines
trapezoid
negative
properties of a rhombus
31. 5-12-13
properties of a rhombus
xy-xz
medians of a triangle
right triangle
32. If two lines are parallel - the slope of one is
right triangle
circle
equal to the slope of the other
n percent less than x
33. In transversals
all acute angles are equal and all obtuse angles are equal
x²-y²
expression of an even number
the last three numbers are divisible by 8
34. The measure of an interior angle is
1 - 3 - 5 - 7 - 9
equal to the sum of the measures of the remote exterior angles
cylinder
circle
35. The sum of the interior angles is
y-x
xy
a relation is a function
180 degrees
36. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
the percent of increase
a side< b side
trapezoid
±vx
37. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)
parallel
null set
quadratic equations
permutations
38. Area= bh perimeter= 2a +2b
parallelogram
range of a relation
angle bisector
circle
39. 1/2d
slope of a line joining two points
radius of a circle
range of a relation
belongs to
40. M= y2-y1/x2-x1
b+d>c+e
slope of a line joining two points
supplementary angles
set
41. Wx>wy
Axioms
w>0 and x>y
the last three numbers are divisible by 8
the sum of parts
42. 9-40-41
odd
w>0 and x>y
right triangle
a side< b side
43. x less than y
right triangle
±vx
perpendicular
y-x
44. Any arc length is less than
properties of parallelograms
1
triangle
360 degrees
45. ? if a side < b side - then
medians of a triangle
y angle< x angle
v3/2 or .87
polygon
46. Is the set of the first components of the ordered pairs.
domain of a relation
x<0
perpendicular bisectors
x%
47. Pairs of opposite angles formed by the intersection of two straight lines. always equal to each other
diameter
x - y
closed set
vertical angles
48. V10
xy + xz
right angle
reflex angle
3.16
49. Product of an even number and any other number is
vertical angles
n= mx/100
angle a and angle b = angle d
even
50. The point where the line crosses the x-axis - y will always = 0 in this case
x intercept
diameter
x - y
combinations