Nakreslete bodem <em>D</em> kolmici <em>K</em> k rovině <img class="mathtex-equation-editor" src="http://chart.apis.google.com/chart?cht=tx&amp;chl=%5Crho" alt="\rho" align="absmiddle" />.
Ve 3D můžete měnit polohu průsečíků roviny <img class="mathtex-equation-editor" src="http://chart.apis.google.com/chart?cht=tx&amp;chl=%5Crho" alt="\rho" align="absmiddle" /> s osami <em>x,y,z </em>a polohu bodu <em>D</em> v rovině <img class="mathtex-equation-editor" src="http://chart.apis.google.com/chart?cht=tx&amp;chl=%5Crho" alt="\rho" align="absmiddle" /> .

<iframe style="border: 0px;" src="https://tube.geogebra.org/material/iframe/id/131144/width/1467/height/617/border/888888/rc/false/ai/false/sdz/true/smb/false/stb/false/stbh/true/ld/false/sri/true/at/auto" width="1467px" height="617px" scrolling="no"> </iframe>
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