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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 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
coinciding lines
the sum of its digits is divisible by 3
equilateral triangle
straight angle
2. 360°
circle
(x-y/x)100
b is the y-intercept
±vx
3. 5+3= 3+5 and 5 x 3= 3 x 5
x+y/xy
x-y/xy
commutative axiom of addition and multiplication
then side b > side a
4. Sum of an odd and an even number is
implies
odd
properties of a rectangle
x²-2xy+y²
5. The difference between x and y
the square of x
a set
trapezoid
x - y
6. Is the relation with ALL ordered pairs REVERSED.
cylinder
inverse of a relation
no solutions
y angle< x angle
7. 2k
0 - 2 - 4 - 6 - 8
expression of an even number
vertical angles
equals
8. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
x>y and w>z
two solutions
straight angle
isosceles triangle
9. Sin 30°
isosceles triangle
1/2
belongs to
x²-y²
10. z>y
even
a
expression of an even number
x<0 and z=x+y
11. Volume= e(edge)³ surface area= 6e²
cube
circle
isosceles triangle
equilateral triangle
12. Is a subset of every set
null set
simultaneous equations in 2 unknowns
properties of parallelograms
parallel
13. 3(4+1)= 3 x 4 + 3 x 1
distributive axiom
hexagon
vertical angles
right triangle
14. 1-1-v2 (90-45-45)
right triangle
commutative axiom of addition and multiplication
radius of a circle
diameter
15. Volume=lwh surface area= 2wh + 2hl + 2lw
x²-2xy+y²
sphere
rectangular solid
then side b > side a
16. Any integer is divisible by 10 - if
right triangle
the last digit is 0
radius of a circle
b+d>c+e
17. Intersect at only one point - the point is the only solution to the pair of equations
consistent lines
equal to the slope of the other
x percent
x²+ 2xy+y²
18. Sin 60°
v3/2 or .87
one solution
similar triangles
x is greater than y
19. Less than 90°
x>y and w>z
xy
acute angle
one solution
20. 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.
equal angles
belongs to
even
altitude of a triangle
21. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
cylinder
negative
permutations
triangle
22. When two parallel lines are crossed by a third straight line (transversal) - then
equal
x is less than y
null set
all acute angles are equal and all obtuse angles are equal
23. Area= 1/2?r2 length= 1/2?d= ?r perimeter= d(1/2? +1)
angle bisector
360 degrees
circle
semicircle
24. 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
probability
x-y/xy
properties of a rectangle
a+b+d=c+d
25. 1. determine a rough approximation of the square root of the number. 2. divide the number by all the primes that are less than the approx square root. If the number is not divisible by ANY of the these primes - then it is prime. If it IS divisible -
right triangle
if the last digit of the number is 0 -2 -4 -6 -8
right angle
determining if a number is prime
26. V3
the percent of decrease
1.7
angle a and angle b = angle d
180 degrees
27. When the elements of a set are ordered pairs
implies
the last digit is either 0 or 5
circle
relation
28. A chord through the center of the circle
the last digit is 0
diameter
x>y
two solutions
29. x>0 and y<0 or x<0 and y >0
xy< 0
1
diameter of circle
n percent greater than x
30. What % of m is n
(x/100)m= n
equal
properties of parallelograms
xy< 0
31. A pair of equations in two unknowns (each is graphed seperately and each is represented by a straight line)
-y
perpendicular
reflex angle
simultaneous equations
32. The distance from the center of the circle
determining if a number is prime
x is less than y
radius
x<0
33. The measure of an interior angle is
itself
equal to the sum of the measures of the remote exterior angles
equals
approx square roots
34. ?
positive
xy
belongs to
180 degrees
35. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
a set
similar triangles
1
properties of parallelograms
36. Area= 1/2h(b1+b2) perimeter= b1+b2+c+d
trapezoid
equal to the sum of the measures of the remote exterior angles
triangle or straight line
standard deviation
37. 7-24-25
is a subset of
right triangle
equilateral triangle
±vx
38. Any line that connects two points on a circle.
medians of a triangle
rectangular solid
inconsistent lines
chord
39. In transversals
probability
square
all acute angles are equal and all obtuse angles are equal
or
40. y years from now
+y
right triangle
approx products
vertical angles
41. B²-4ac = 0 there is
a
1.7
x>y>0 and w>z>0
one solution
42. | |
the last three numbers are divisible by 8
parallel
perpendicular
expression of an even number
43. 5-12-13
equilateral triangle
reflex angle
x>y and y>z
right triangle
44. If the base angles of a triangle are equal - the triangle is
isosceles
the last digit is either 0 or 5
equilateral triangle
diameter
45. /100 (the ______ number over 100)
and
x and y
percent
if two sets have no elements in common
46. ? if a side < b side - then
x percent
finding the union of sets
range of a relation
y angle< x angle
47. N= number of objects (order matters!!!) k= rate at a time nPk= n!/(n-k)! (remember to cancel common numbers)
permutations
even
±vx
x + y
48. B>c+ d>e
v3/2 or .87
x+y/xy
x is greater than y
b+d>c+e
49. x younger than y
(x-y/x)100
set
x - y
right triangle
50. 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.
two solutions
central angle
x>y>0 and w>z>0
triangle