# Study sets matching "math chapter 11 formulas algebra"

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circumference

arc length (degrees)

arc length (radius)

area of a circle

arc length mARC... = ... _______________ _____________... 2πr 360

arc length mARC... = ... _______________ _____________... 2πr 2π

circumference

arc length (degrees)

arc length mARC... = ... _______________ _____________... 2πr 360

general term of an arithmetic sequence…

general term of an arithmetic sequence…

sum of first n terms of an arithmetic s…

common ratio

a↓n=a₁+(n-1)d

a↓n=a↓p+(n-p)d

S↓n=n/2(a₁+a↓n)

r=a₂/a₁

general term of an arithmetic sequence…

a↓n=a₁+(n-1)d

general term of an arithmetic sequence…

a↓n=a↓p+(n-p)d

Area of a square/rectangle formula

Area of a triangle formula

Area of a equilateral triangle formula

Area of a regular polygon formula

Area = Base x Height

Area = 1/2 x Base x Height

Area = 1/4 x the square root of 3 x side squared

Area = 1/2 x apothem x perimeter

Area of a square/rectangle formula

Area = Base x Height

Area of a triangle formula

Area = 1/2 x Base x Height

Perimeter of any Polygon

Perimeter of regular polygon

Perimeter of rectangle

Circumference given the diameter

add the sides together

multiply the number of sides by the length of the side

p= (2xL) + (2xW)

C =π × diameter

Perimeter of any Polygon

add the sides together

Perimeter of regular polygon

multiply the number of sides by the length of the side

An=A1+(N-1)D

Sn=N/2(A1+An)

Sn=n/2(2A1+(n-1)D)

An=A1R^n-1

Nth term of an arithmetic sequence

Sum of the first n terms of a arithmetic series

Sum of the first n terms of a arithmetic series

Nth term of a geometric sequence

An=A1+(N-1)D

Nth term of an arithmetic sequence

Sn=N/2(A1+An)

Sum of the first n terms of a arithmetic series

The Nth Term of a Arithmetic Sequence

Summation of a Arithmetic Series

The Nth Term of a Geometric Sequence

Summation of a Geometric Series

an=a1+(n-1)d

Sn=(n/2)(a1+an)

an=a1(r^n-1)

Sn=a1-a1(r^n) divided by 1-r or Sn=a1-an(r) divided by 1-r

The Nth Term of a Arithmetic Sequence

an=a1+(n-1)d

Summation of a Arithmetic Series

Sn=(n/2)(a1+an)

Recursive Formula

Explicit Formula

Arithmetic Sequence

Finding nth Term of Arithmetic Sequence

an = a(n-1) (change [+or-] between terms here)

an = n (change [x or /] between terms here)

Adding or Subtracting

an = a1 + (n-1) d

Recursive Formula

an = a(n-1) (change [+or-] between terms here)

Explicit Formula

an = n (change [x or /] between terms here)

An=a1+d(n-1)

Sn=(n/2)(a1+an)... Sn=(n/2)(2a1+d(n-1))

An=a1(r)^n-1

Sn=(a1(1-r^n))/1-r

The nth term of an arithmetic sequence (explicit formula)

Sum of the first n terms of a geometric series (2)

The nth term of a geometric sequence (explicit formula)

Given a1 and n; the sum of the first n terms of a geometric se…

An=a1+d(n-1)

The nth term of an arithmetic sequence (explicit formula)

Sn=(n/2)(a1+an)... Sn=(n/2)(2a1+d(n-1))

Sum of the first n terms of a geometric series (2)