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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. 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.
find the intersection of two sets
altitude of a triangle
times
angle inscribed in semicircle
2. 7-24-25
a side< b side
right triangle
inscribed angle
all acute angles are equal and all obtuse angles are equal
3. All even numbers end in the digits of
0 - 2 - 4 - 6 - 8
triangle or straight line
vertical angles
inverse of a relation
4. ?
implies
y angle< x angle
hemisphere
no solutions
5. 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
approx square roots
±vx
angle inscribed in semicircle
isosceles triangle
6. Area= 1/2bh perimeter= a+b+c
obtuse angle
triangle
x>y and y>z
right triangle
7. Product of two odd numbers is
odd
obtuse angle
parallelogram
even
8. 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
the percent of decrease
right triangle
if two sets have no elements in common
9. A+b=c+ d=d
x>y and w>z
properties of a rectangle
a+b+d=c+d
slope of a line joining two points
10. 180°
straight angle
domain of a relation
closed set
the percent of decrease
11. y years from now
w<0 and x>y
+y
no solutions
it is also divisible by 2 and 3
12. The measure of an interior angle is
right triangle
altitude of a triangle
and
equal to the sum of the measures of the remote exterior angles
13. M?A = m?D m?B= m?E m?C=m?F and a/d=b/e=c/f
angle a and angle b = angle d
similar triangles
null set
the percent of increase
14. 1. round each number being added to one more place than it is being asked. 2. add the rounded numbers. 3. round off the sum to the desired number of places
or
approx sums
xy + xz
1.4
15. If b²-4ac < 0 - there are
is a subset of
equal to the slope of the other
no solutions
right triangle
16. 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
if two sets have no elements in common
all acute angles are equal and all obtuse angles are equal
cylinder
coinciding lines
17. Is the relation with ALL ordered pairs REVERSED.
circle
expression of an odd number
inverse of a relation
+y
18. V2
a set
1.4
if the last digit of the number is 0 -2 -4 -6 -8
the percent of increase
19. Volume= e(edge)³ surface area= 6e²
xy + xz
cube
y-x
semicircle
20. x + y
x and y
c x (john'S age)
right triangle
closed set
21. Volume= bh or ?r²h surface area= 2?rh (w/o bases) or 2?r(h+r) with bases
no solutions
cylinder
diameter of circle
simultaneous equations in 2 unknowns
22. 1/2bh
w>0 and x>y
x²-2xy+y²
area of a triangle
xy>0
23. 1/an
a?n
associative axiom of addition and multiplication
b is the y-intercept
expression of an odd number
24. B²-4ac = 0 there is
x is greater than y
a+b+d=c+d
isosceles
one solution
25. If the base angles of a triangle are equal - the triangle is
x-y
isosceles
the last digit is either 0 or 5
null set
26. Is the set of the second components of the ordered pairs
angle a and angle b = angle d
range of a relation
equilateral triangle
a relation is a function
27. When the elements of a set are ordered pairs
vertical angles
relation
cylinder
expression of an odd number
28. The whole equals
right triangle
the sum of parts
chord
percent
29. 5-12-13
the last three numbers are divisible by 8
equilateral triangle
odd
right triangle
30. Wx<wy
approx products
w<0 and x>y
right triangle
1/2
31. If two lines are perpendicular - the slope of one is the
negative reciprocal of the other
x-y/xy
1
vertical angles
32. Integer is divisible by 2
equal to the sum of the measures of the remote exterior angles
x>y
1
if the last digit of the number is 0 -2 -4 -6 -8
33. x(y-z)
xy-xz
null set
x>y
properties of parallelograms
34. Area= l x w perimeter = (2l)(2w)
two solutions
circle
rectangle
0 - 2 - 4 - 6 - 8
35. Any integer is divisible by 8 if
x²+ 2xy+y²
the last three numbers are divisible by 8
a relation is a function
right triangle
36. 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.
the square of x
regular polygon properties
a
y-x
37. Have two equal sides and two equal angles formed by the equal sides and the unequal side.
coinciding lines
1.4
simultaneous equations
isosceles triangle
38. ? if a side is equal to b side then - the opposite corresponding angles are
negative
equal
right triangle
if the last digit of the number is 0 -2 -4 -6 -8
39. C²= a²+b² and angle x and y are equal to 90°
semicircle
regular polygon properties
w>0 and x>y
right triangle
40. (amount of decrease/original amount) x 100
the percent of decrease
x%
find the intersection of two sets
quadratic equations
41. Intersect at only one point - the point is the only solution to the pair of equations
all acute angles are equal and all obtuse angles are equal
b+d>c+e
hemisphere
consistent lines
42. y<x
no solutions
x>y
x - y
central angle
43. Square of hypotenuse = c² = a²+b² length of hypotenuse = c= va²+vb²
negative reciprocal of the other
no solutions
central angle
pythagorean theorem
44. Angles that equal 180 degrees
supplementary angles
the third side
any variable
y-x
45. 1/2d
radius of a circle
xy
inconsistent lines
x-y
46. Volume= 4/3?r² surface area= 4?r²
sphere
determining if a number is prime
percent
domain of a relation
47. x less than y
y-x
right triangle
pythagorean theorem
180 degrees
48. One angle is equal 90° and the other two angles are equal to the sum of 90°
two solutions
right triangle
tangent
angle inscribed in semicircle
49. Any integer is divisible by 4 - if
angle inscribed in semicircle
rectangular solid
reflex angle
the last two digits of the number make a number that is divisible by 4
50. 3-4-5
x-y
x²+ 2xy+y²
right triangle
x>y