# 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

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

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

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)