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25 Cards in this Set
 Front
 Back
Total degrees in a polygon

(n2) 180


Angle measure of a regular polygon

(n2)180/n


Sum of measures of angles of any polygon

360


One exterior angle of a regular polygon

360/n


Area of Rectangle

A=lw


Area of Parallelogram

A=bh


Area of Square

A=lw
A=s(s) 

Area of Triangle

A=bh/2
A=1/2 bh 

Area of Equilateral Triangle

A=s(s)root(3)/4


Heron's Formula

s=a+b+c/2
A=root(s{sa}{sb}{sc}) 

Area of Trapezoid

A=(b1+b2)h/2


Area of Rhombus or Kite

A=d1(d2)/2


Pick Theorem

A=(b/2 + i)1
b=border point i=interior point 

Area of Circle

A=PIr(r)
A=Pi(rsquared) 

Arc Length

La=m/360(C)


Area of Sector on Circle

As=m/360(PI(rsquared))


Area of Circle Segment

SA=m/360(PI(rsquared))bh/2


Area of Regular Polygons

A=ap/2
A=1/2 ap a=apothem p=perimeter 

Equation of Circle

(xh)2+(yk)2=r(squared)


Perimeter of Similar Figures

S1/S2=P1/P2


Area of Similar Figures

(S1/S2)2=A1/A2


Volume of Similar Figures

(S1/S2)3=V1/V2


Surface Area of Similar Figures

(S1/S2)2=SA/SA


Length Probability

Prob X is on AB=AB/AC
[[segment over whole thing]] 

Area Probability

Prob X in region B=area B/area A
[[region out of whole]] 