File:Orthocenter proof using anti median triangle.svg

Summary

Description
Ελληνικά: Σχήμα απόδειξης για το ορθόκεντρο χρησιμοποιώντας το αντισυμπληρωματικό τρίγωνο.
Date
Source Own work
Author Dimitris131
SVG development
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Source code
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LaTeX code

\documentclass[tikz]{standalone}
\usepackage{pgfplots}
\pgfplotsset{compat=1.15}
\usepackage{mathrsfs}
\usetikzlibrary{arrows,calc}
\usepackage{tkz-euclide}

\usepackage{fp}
\pagestyle{empty}

\definecolor{AngleClr}{rgb}{0,0.39215686274509803,0}
\definecolor{ShapeClr}{rgb}{0.6,0.2,0}

\begin{document}

\begin{tikzpicture}[scale=.75]
\tkzSetUpLine[line width=1pt,color=black]
\tkzSetUpPoint[fill=black]

\tkzDefPoints{0/0/L,0.8/-3.7/M,5/0/K}

\tkzDefMidPoint(M,L) \tkzGetPoint{B}
\tkzDefMidPoint(L,K) \tkzGetPoint{A}
\tkzDefMidPoint(K,M) \tkzGetPoint{C}

\tkzDefTriangleCenter[ortho](A,C,B)\tkzGetPoint{H}

\tkzDefPointBy[projection=onto C--B](H)\tkzGetPoint{HA}
\tkzDefPointBy[projection=onto A--C](H)\tkzGetPoint{HB}
\tkzDefPointBy[projection=onto A--B](H)\tkzGetPoint{HC}

\tkzDrawSegment[line width=0.5pt,color=black,dashed,dash pattern=on 1pt off 1.75pt,add=0.15 and 0.15](L,K)
\tkzDrawSegment[line width=0.5pt,color=black,dashed,dash pattern=on 1pt off 1.75pt,add=0.15 and 0.15](K,M)
\tkzDrawSegment[line width=0.5pt,color=black,dashed,dash pattern=on 1pt off 1.75pt,add=0.15 and 0.15](M,L)

\tkzDrawSegment[line width=0.5pt,color=black,dashed,dash pattern=on 1pt off 1.75pt,add=0.2 and 0.2](A,HA)
\tkzDrawSegment[line width=0.5pt,color=black,dashed,dash pattern=on 1pt off 1.75pt,add=0.2 and 0.2](B,HB)
\tkzDrawSegment[line width=0.5pt,color=black,dashed,dash pattern=on 1pt off 1.75pt,add=0.2 and 0.2](C,HC)

\tkzMarkRightAngle[line width=0.5pt, size=.125,color=AngleClr,fill=AngleClr,fill opacity=0.1](H,HA,C)
\tkzMarkRightAngle[line width=0.5pt, size=.125,color=AngleClr,fill=AngleClr,fill opacity=0.1](H,HB,A)
\tkzMarkRightAngle[line width=0.5pt, size=.125,color=AngleClr,fill=AngleClr,fill opacity=0.1](H,HC,B)

\tkzMarkRightAngle[line width=0.5pt, size=.125,color=AngleClr,fill=AngleClr,fill opacity=0.1](H,A,L)
\tkzMarkRightAngle[line width=0.5pt, size=.125,color=AngleClr,fill=AngleClr,fill opacity=0.1](H,B,M)
\tkzMarkRightAngle[line width=0.5pt, size=.125,color=AngleClr,fill=AngleClr,fill opacity=0.1](H,C,K)

\tkzDrawSegment[line width=0.5pt,color=black](A,HA)
\tkzDrawSegment[line width=0.5pt,color=black](C,HC)
\tkzDrawSegment[line width=0.5pt,color=black](B,HB)

\tkzDrawPolygon[color=ShapeClr](A,B,C)
\tkzDrawPoints[size=3](A,B,C)
\tkzLabelPoint[above right](A){$\rm A$}
\tkzLabelPoint[below left](B){$\rm B$}
\tkzLabelPoint[below right](C){$\rm \Gamma$}
\tkzLabelSegment[below, scale=0.75](C,B){$\alpha$}
\tkzLabelSegment[right, scale=0.75](A,C){$\beta$}
\tkzLabelSegment[left, scale=0.75](A,B){$\gamma$}

\tkzDrawPoints[size=3](K,L,M)
\tkzLabelPoint[above right](K){$\rm K$}
\tkzLabelPoint[above left](L){$\rm \Lambda$}
\tkzLabelPoint[below](M){$\rm M$}

\tkzDrawPoints[size=3](H)

\tkzLabelSegment[above, scale=0.75](L,A){$\alpha$}
\tkzLabelSegment[above, scale=0.75](A,K){$\alpha$}


\tkzLabelSegment[left, scale=0.75](M,B){$\beta$}
\tkzLabelSegment[left, scale=0.75](B,L){$\beta$}
\tkzLabelSegment[right, scale=0.75](M,C){$\gamma$}
\tkzLabelSegment[right, scale=0.75](C,K){$\gamma$}

\end{tikzpicture}
\end{document}

Licensing

I, the copyright holder of this work, hereby publish it under the following license:
Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

Category:CC-Zero#Orthocenter%20proof%20using%20anti%20median%20triangle.svg
Category:Self-published work Category:Geometry Category:Medial triangle
Category:CC-Zero Category:Geometry Category:Medial triangle Category:Self-published work Category:Valid SVG created with LaTeX code