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25 Cards in this Set
- Front
- Back
Total degrees in a polygon
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(n-2) 180
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Angle measure of a regular polygon
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(n-2)180/n
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Sum of measures of angles of any polygon
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360
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One exterior angle of a regular polygon
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360/n
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Area of Rectangle
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A=lw
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Area of Parallelogram
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A=bh
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Area of Square
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A=lw
A=s(s) |
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Area of Triangle
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A=bh/2
A=1/2 bh |
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Area of Equilateral Triangle
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A=s(s)root(3)/4
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Heron's Formula
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s=a+b+c/2
A=root(s{s-a}{s-b}{s-c}) |
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Area of Trapezoid
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A=(b1+b2)h/2
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Area of Rhombus or Kite
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A=d1(d2)/2
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Pick Theorem
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A=(b/2 + i)-1
b=border point i=interior point |
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Area of Circle
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A=PIr(r)
A=Pi(r-squared) |
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Arc Length
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La=m/360(C)
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Area of Sector on Circle
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As=m/360(PI(r-squared))
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Area of Circle Segment
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SA=m/360(PI(r-squared))-bh/2
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Area of Regular Polygons
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A=ap/2
A=1/2 ap a=apothem p=perimeter |
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Equation of Circle
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(x-h)2+(y-k)2=r(--squared)
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Perimeter of Similar Figures
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S1/S2=P1/P2
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Area of Similar Figures
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(S1/S2)2=A1/A2
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Volume of Similar Figures
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(S1/S2)3=V1/V2
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Surface Area of Similar Figures
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(S1/S2)2=SA/SA
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Length Probability
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Prob X is on AB=AB/AC
[[segment over whole thing]] |
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Area Probability
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Prob X in region B=area B/area A
[[region out of whole]] |