step, lines, tikzpicture

Question

Hei, Can somebody help me with making those lines from the picture?

Answer 1

like this?

for more complete image you should show us, what you try so far ...

\documentclass[tikz, margin=3mm]{standalone}
\usetikzlibrary{patterns, quotes}
\usepackage{siunitx}

\begin{document}
    \begin{tikzpicture}[
every edge quotes/.append style = {%
        font=\footnotesize, anchor=south, sloped}                            
                        ]
\draw[thick,
      pattern=north east lines
      ]
      (0,0) to ["\SI{30}{cm}"] ++ (0,6)
            -- ++ (3,-3)
            -- cycle;
    \end{tikzpicture}
\end{document}