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46 lines
1.3 KiB
TeX
46 lines
1.3 KiB
TeX
\documentclass{article}
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\usepackage[pdftex,active,tightpage]{preview}
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\setlength\PreviewBorder{2mm}
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\usepackage{tikz}
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\usepackage{tkz-euclide}
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\usetikzlibrary{angles,quotes}
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\usetkzobj{all}
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\usetikzlibrary{shapes, calc, decorations}
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\usepackage{amsmath,amssymb}
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\usepackage{helvet}
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\usepackage[eulergreek]{sansmath}
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\begin{document}
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\begin{preview}
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\begin{tikzpicture}[very thick,font=\sansmath\sffamily,x=3cm,y=3cm]
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\tkzInit[xmax=1.0,ymax=1.0,xmin=-1.0,ymin=-1.0]
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\tkzGrid
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\tkzAxeXY[up space=0.2,right space=0.2, label options={fill=none}]
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\tkzDefPoint(0,0){A}
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\tkzDefPoint({cos(FPpi/5)*1},0){B}
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\tkzDefPoint({cos(FPpi/5)*1},{sin(FPpi/5)*1}){C}
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\tkzDefPoint(1,0){CircleEnd}
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\tkzDrawCircle(A,CircleEnd)
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% \tkzLabelPoints[below left,font=\sansmath\sffamily](A)
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% \tkzLabelPoints[below right,font=\sansmath\sffamily](B)
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% Mark angle
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\tkzMarkAngle[arc=l,size=0.6cm,fill=green!30](B,A,C)
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\tkzLabelAngle[pos=0.15](B,A,C){$\alpha$}
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% Draw polygon
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\tkzDrawPolygon(A,B,C)
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\tkzDrawSegment[black!60!green,very thick](A,B)
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\tkzDrawSegment[red,very thick](B,C)
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% Label lines
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\tkzLabelSegment[above](A,C){$1$}
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\tkzLabelSegment[sloped,above=-0.05,red](B,C){$\sin(\alpha)$}
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\tkzLabelSegment[below,black!60!green](A,B){$\cos(\alpha)$}
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\end{tikzpicture}
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\end{preview}
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\end{document}
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