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### 25 Cards in this Set

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 Total degrees in a polygon (n-2) 180 Angle measure of a regular polygon (n-2)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{s-a}{s-b}{s-c}) 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(r-squared) Arc Length La=m/360(C) Area of Sector on Circle As=m/360(PI(r-squared)) Area of Circle Segment SA=m/360(PI(r-squared))-bh/2 Area of Regular Polygons A=ap/2 A=1/2 ap a=apothem p=perimeter Equation of Circle (x-h)2+(y-k)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]]