40 lines
1.4 KiB
TeX
40 lines
1.4 KiB
TeX
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\documentclass[tikz, border=10pt,convert=true]{standalone}
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\usepackage[]{tkz-euclide}
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%\usetikzlibrary{shapes.geometric,calc}
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\begin{document}
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\begin{tikzpicture}[scale=3]
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\tkzDefPoints{0/0/M}
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\tkzDefShiftPoint[M](40:2){A} % polar coord rel.to M: 40deg, r=2
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\tkzDefShiftPoint[M](-40:2){C} % rel. to M: -40deg, r=2
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\tkzDefShiftPoint[M](0:2){B} % just 2 steps to the right
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\tkzInterLL(A,C)(M,B)
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\tkzGetPoint{N} % intersection of lines
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\tkzDrawArc[delta=10,very thick](M,C)(A) % arc
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\tkzDrawPoints(M,A,B,C,N)
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\tkzLabelPoints[below](M,C)
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\tkzLabelPoints[above right](A)
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\tkzLabelPoints[right](B)
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\tkzLabelPoints[below left](N)
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\tkzDrawSegment[green, very thick](A,B)
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\tkzDrawSegment[green, very thick](B,C)
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\tkzDrawSegment[blue, very thick](A,C)
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\tkzDrawSegment[black, very thick](M,B)
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\tkzDrawSegment[black, very thick](M,A)
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\tkzDrawSegment[black, very thick](M,C)
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\tkzLabelSegment[above,pos=.5](M,A){$1$}
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\tkzLabelSegment[above,pos=.5](M,C){$1$}
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\tkzMarkRightAngle[size=.08](M,N,A)
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\tkzLabelSegment[above,pos=.5](M,N){$a$}
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\tkzLabelSegment[above,pos=.5](N,B){$1-a$}
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\tkzLabelSegment[below right,pos=.45](A,B){$s_{2n}$}
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\tkzLabelSegment[left,pos=.4](A,C){$s_{n}$}
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\tkzLabelSegment[below left,pos=.3](B,C){$s_{2n}$}
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\end{tikzpicture}
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\end{document}
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