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GRE Kaplan Math Formulas
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Gravity
Terms in this set (33)
Find the area of a triangle
A= 1/2 x base x height
Find the Circumference of circle
C=2πr or C=πd
Find the area of a circle
A=πr^2
Arc length
= Central Angel/360 (circumference)
Area of Sector
=Central Angel/360 (area of circle)
Pythagorean Triples (Size Ratios)
3:4:5 5:12:13 6:8:10
Special Right Triangles (A-B-C)
Special Right Triangles (A-B-C)
Area of a Square
Area of a rectangle
Area of a parallelogram
Area of a quadrilateral
Find the speed
Average speed formula
Find the Probability
Probability= # of desired outcome/# of possible outcomes
Permutations
Order Matters (Repetition not allowed)
How many ways/arrangements/orders/schedules are possible)
Combination
Order Doesn't matter
(Repetition Allowed)
How many unordered groups can be formed from a large group
n=# of items in the whole group
r=# of itemsp in subgroups
Mode
the most common # in a set
median
the middle term, when listed in order
Sum of theses two #s always equals an odd #
(odd #) + (even # )= odd #
product of these two # always equals an odd #
(odd #) * (odd #) = (odd #)
Coordinate plane=
y= vertical x=horizontal
Standard form of a line
y = mx +b m=slope b= y-intercept
X^2 - Y^2 = ?
(x+y) (x-y)
x^2+2xy+y^2=?
(x +y)(x+y)
x^2-2xy+y^2=?
(x -y)(x-y)
find the slope
Find volume of cube
V=a^3
Find volume of cylinder
V=(PI)(r^)(h)
Find surface area of cube
6a^2
Find surface area of CYLINDER
A=2πrh+2πr2
Prime Number
A # that is only divisible by 1 and itself
Isosceles Triangle
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