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25 Cards in this Set

  • Front
  • Back
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]]