Flashcard Set Preview
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| 1 |
Pick's Theorem
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A=(x/2)+y-1
where x = border points, y = interior points
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| 2 |
Area of rectangle
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A=bh
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| 3 |
Area of square
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A=s2
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| 4 |
Area of parallelogram
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A=bh
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| 5 |
Area of triangle
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A=(1/2)bh
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| 6 |
Heron's Formula
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A=sq root (s x (s-a) x (s-b) x (s-c))
where s = .5(a+b+c)
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| 7 |
Area of equilateral triangle
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A=(a2 times sq root 3)/4
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| 8 |
Area of trapezoid
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A=.5(b1 + b2)h
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| 9 |
Area of rhombus
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A=.5(d1)(d2)
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| 10 |
Circumference of circle
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C=(pi)d or 2(pi)r
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| 11 |
Area of circle
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A=(pi)r2
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| 12 |
Area of sector
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A=(m/360)(pi)r2
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| 13 |
Length of arc
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L=(m/360) x 2pi x r or
L=(m/180) x pi x r
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| 14 |
Area of regular polygon
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A= .5ap
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