% Tikz File 'mytikz.tex'
\documentclass{standalone}
\usepackage{tikz}
%\usetikzlibrary{...}
\begin{document}
\begin{tikzpicture}[x=1pt,y=1pt,yscale=1,xscale=1,scale=.65]
%draw nabla piece: aaa, (1, 0)
\draw [fill={rgb, 255:red, 248; green, 131; blue, 131 }] (45.0,25.98) -- (30.0,0.0) -- (15.0,25.98) -- cycle;
\draw (37.5,12.99) node  [rotate=60]  {$\mathtt{0}$};
\draw (22.5,12.99) node  [rotate=-60]  {$\mathtt{0}$};
\draw (30.0,25.98) node  [rotate=0]  {$\mathtt{0}$};
%draw delta piece: acb, (2, 0)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (30.0,0.0) -- (45.0,25.98) -- (60.0,0.0) -- cycle;
\draw (37.5,12.99) node  [rotate=60]  {$\mathtt{0}$};
\draw (52.5,12.99) node  [rotate=-60]  {$\mathtt{1\! 0}$};
\draw (45.0,0.0) node  [rotate=0]  {$\mathtt{1}$};
%draw nabla piece: acb, (3, 0)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (75.0,25.98) -- (60.0,0.0) -- (45.0,25.98) -- cycle;
\draw (67.5,12.99) node  [rotate=60]  {$\mathtt{0}$};
\draw (52.5,12.99) node  [rotate=-60]  {$\mathtt{1\! 0}$};
\draw (60.0,25.98) node  [rotate=0]  {$\mathtt{1}$};
%draw delta piece: acb, (4, 0)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (60.0,0.0) -- (75.0,25.98) -- (90.0,0.0) -- cycle;
\draw (67.5,12.99) node  [rotate=60]  {$\mathtt{0}$};
\draw (82.5,12.99) node  [rotate=-60]  {$\mathtt{1\! 0}$};
\draw (75.0,0.0) node  [rotate=0]  {$\mathtt{1}$};
%draw nabla piece: acb, (5, 0)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (105.0,25.98) -- (90.0,0.0) -- (75.0,25.98) -- cycle;
\draw (97.5,12.99) node  [rotate=60]  {$\mathtt{0}$};
\draw (82.5,12.99) node  [rotate=-60]  {$\mathtt{1\! 0}$};
\draw (90.0,25.98) node  [rotate=0]  {$\mathtt{1}$};
%draw delta piece: aaa, (6, 0)
\draw [fill={rgb, 255:red, 248; green, 131; blue, 131 }] (90.0,0.0) -- (105.0,25.98) -- (120.0,0.0) -- cycle;
\draw (97.5,12.99) node  [rotate=60]  {$\mathtt{0}$};
\draw (112.5,12.99) node  [rotate=-60]  {$\mathtt{0}$};
\draw (105.0,0.0) node  [rotate=0]  {$\mathtt{0}$};
%draw delta piece: aaa, (1, 1)
\draw [fill={rgb, 255:red, 248; green, 131; blue, 131 }] (15.0,25.98) -- (30.0,51.96) -- (45.0,25.98) -- cycle;
\draw (22.5,38.97) node  [rotate=60]  {$\mathtt{0}$};
\draw (37.5,38.97) node  [rotate=-60]  {$\mathtt{0}$};
\draw (30.0,25.98) node  [rotate=0]  {$\mathtt{0}$};
%draw delta piece: bbb, (3, 1)
\draw [fill={rgb, 255:red, 137; green, 190; blue, 251 }] (45.0,25.98) -- (60.0,51.96) -- (75.0,25.98) -- cycle;
\draw (52.5,38.97) node  [rotate=60]  {$\mathtt{1}$};
\draw (67.5,38.97) node  [rotate=-60]  {$\mathtt{1}$};
\draw (60.0,25.98) node  [rotate=0]  {$\mathtt{1}$};
%draw nabla piece: bbb, (4, 1)
\draw [fill={rgb, 255:red, 137; green, 190; blue, 251 }] (90.0,51.96) -- (75.0,25.98) -- (60.0,51.96) -- cycle;
\draw (82.5,38.97) node  [rotate=60]  {$\mathtt{1}$};
\draw (67.5,38.97) node  [rotate=-60]  {$\mathtt{1}$};
\draw (75.0,51.96) node  [rotate=0]  {$\mathtt{1}$};
%draw delta piece: bbb, (5, 1)
\draw [fill={rgb, 255:red, 137; green, 190; blue, 251 }] (75.0,25.98) -- (90.0,51.96) -- (105.0,25.98) -- cycle;
\draw (82.5,38.97) node  [rotate=60]  {$\mathtt{1}$};
\draw (97.5,38.97) node  [rotate=-60]  {$\mathtt{1}$};
\draw (90.0,25.98) node  [rotate=0]  {$\mathtt{1}$};
%draw nabla piece: bbb, (6, 1)
\draw [fill={rgb, 255:red, 137; green, 190; blue, 251 }] (120.0,51.96) -- (105.0,25.98) -- (90.0,51.96) -- cycle;
\draw (112.5,38.97) node  [rotate=60]  {$\mathtt{1}$};
\draw (97.5,38.97) node  [rotate=-60]  {$\mathtt{1}$};
\draw (105.0,51.96) node  [rotate=0]  {$\mathtt{1}$};
%draw delta piece: bac, (7, 1)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (105.0,25.98) -- (120.0,51.96) -- (135.0,25.98) -- cycle;
\draw (112.5,38.97) node  [rotate=60]  {$\mathtt{1}$};
\draw (127.5,38.97) node  [rotate=-60]  {$\mathtt{0}$};
\draw (120.0,25.98) node  [rotate=0]  {$\mathtt{1\! 0}$};
%draw nabla piece: bac, (7, 0)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (135.0,25.98) -- (120.0,0.0) -- (105.0,25.98) -- cycle;
\draw (127.5,12.99) node  [rotate=60]  {$\mathtt{1}$};
\draw (112.5,12.99) node  [rotate=-60]  {$\mathtt{0}$};
\draw (120.0,25.98) node  [rotate=0]  {$\mathtt{1\! 0}$};
%draw delta piece: bac, (2, 2)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (30.0,51.96) -- (45.0,77.94) -- (60.0,51.96) -- cycle;
\draw (37.5,64.95) node  [rotate=60]  {$\mathtt{1}$};
\draw (52.5,64.95) node  [rotate=-60]  {$\mathtt{0}$};
\draw (45.0,51.96) node  [rotate=0]  {$\mathtt{1\! 0}$};
%draw nabla piece: bac, (2, 1)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (60.0,51.96) -- (45.0,25.98) -- (30.0,51.96) -- cycle;
\draw (52.5,38.97) node  [rotate=60]  {$\mathtt{1}$};
\draw (37.5,38.97) node  [rotate=-60]  {$\mathtt{0}$};
\draw (45.0,51.96) node  [rotate=0]  {$\mathtt{1\! 0}$};
%draw delta piece: bbb, (4, 2)
\draw [fill={rgb, 255:red, 137; green, 190; blue, 251 }] (60.0,51.96) -- (75.0,77.94) -- (90.0,51.96) -- cycle;
\draw (67.5,64.95) node  [rotate=60]  {$\mathtt{1}$};
\draw (82.5,64.95) node  [rotate=-60]  {$\mathtt{1}$};
\draw (75.0,51.96) node  [rotate=0]  {$\mathtt{1}$};
%draw nabla piece: bbb, (5, 2)
\draw [fill={rgb, 255:red, 137; green, 190; blue, 251 }] (105.0,77.94) -- (90.0,51.959999999999994) -- (75.0,77.94) -- cycle;
\draw (97.5,64.95) node  [rotate=60]  {$\mathtt{1}$};
\draw (82.5,64.95) node  [rotate=-60]  {$\mathtt{1}$};
\draw (90.0,77.94) node  [rotate=0]  {$\mathtt{1}$};
%draw delta piece: bbb, (6, 2)
\draw [fill={rgb, 255:red, 137; green, 190; blue, 251 }] (90.0,51.96) -- (105.0,77.94) -- (120.0,51.96) -- cycle;
\draw (97.5,64.95) node  [rotate=60]  {$\mathtt{1}$};
\draw (112.5,64.95) node  [rotate=-60]  {$\mathtt{1}$};
\draw (105.0,51.96) node  [rotate=0]  {$\mathtt{1}$};
%draw nabla piece: bbb, (7, 2)
\draw [fill={rgb, 255:red, 137; green, 190; blue, 251 }] (135.0,77.94) -- (120.0,51.959999999999994) -- (105.0,77.94) -- cycle;
\draw (127.5,64.95) node  [rotate=60]  {$\mathtt{1}$};
\draw (112.5,64.95) node  [rotate=-60]  {$\mathtt{1}$};
\draw (120.0,77.94) node  [rotate=0]  {$\mathtt{1}$};
%draw delta piece: bac, (8, 2)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (120.0,51.96) -- (135.0,77.94) -- (150.0,51.96) -- cycle;
\draw (127.5,64.95) node  [rotate=60]  {$\mathtt{1}$};
\draw (142.5,64.95) node  [rotate=-60]  {$\mathtt{0}$};
\draw (135.0,51.96) node  [rotate=0]  {$\mathtt{1\! 0}$};
%draw nabla piece: bac, (8, 1)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (150.0,51.96) -- (135.0,25.98) -- (120.0,51.96) -- cycle;
\draw (142.5,38.97) node  [rotate=60]  {$\mathtt{1}$};
\draw (127.5,38.97) node  [rotate=-60]  {$\mathtt{0}$};
\draw (135.0,51.96) node  [rotate=0]  {$\mathtt{1\! 0}$};
%draw nabla piece: aaa, (9, 2)
\draw [fill={rgb, 255:red, 248; green, 131; blue, 131 }] (165.0,77.94) -- (150.0,51.959999999999994) -- (135.0,77.94) -- cycle;
\draw (157.5,64.95) node  [rotate=60]  {$\mathtt{0}$};
\draw (142.5,64.95) node  [rotate=-60]  {$\mathtt{0}$};
\draw (150.0,77.94) node  [rotate=0]  {$\mathtt{0}$};
%draw delta piece: bac, (3, 3)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (45.0,77.94) -- (60.0,103.92) -- (75.0,77.94) -- cycle;
\draw (52.5,90.92999999999999) node  [rotate=60]  {$\mathtt{1}$};
\draw (67.5,90.92999999999999) node  [rotate=-60]  {$\mathtt{0}$};
\draw (60.0,77.94) node  [rotate=0]  {$\mathtt{1\! 0}$};
%draw nabla piece: bac, (3, 2)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (75.0,77.94) -- (60.0,51.959999999999994) -- (45.0,77.94) -- cycle;
\draw (67.5,64.95) node  [rotate=60]  {$\mathtt{1}$};
\draw (52.5,64.95) node  [rotate=-60]  {$\mathtt{0}$};
\draw (60.0,77.94) node  [rotate=0]  {$\mathtt{1\! 0}$};
%draw delta piece: bbb, (5, 3)
\draw [fill={rgb, 255:red, 137; green, 190; blue, 251 }] (75.0,77.94) -- (90.0,103.92) -- (105.0,77.94) -- cycle;
\draw (82.5,90.92999999999999) node  [rotate=60]  {$\mathtt{1}$};
\draw (97.5,90.92999999999999) node  [rotate=-60]  {$\mathtt{1}$};
\draw (90.0,77.94) node  [rotate=0]  {$\mathtt{1}$};
%draw nabla piece: bbb, (6, 3)
\draw [fill={rgb, 255:red, 137; green, 190; blue, 251 }] (120.0,103.92) -- (105.0,77.94) -- (90.0,103.92) -- cycle;
\draw (112.5,90.93) node  [rotate=60]  {$\mathtt{1}$};
\draw (97.5,90.93) node  [rotate=-60]  {$\mathtt{1}$};
\draw (105.0,103.92) node  [rotate=0]  {$\mathtt{1}$};
%draw delta piece: bbb, (7, 3)
\draw [fill={rgb, 255:red, 137; green, 190; blue, 251 }] (105.0,77.94) -- (120.0,103.92) -- (135.0,77.94) -- cycle;
\draw (112.5,90.92999999999999) node  [rotate=60]  {$\mathtt{1}$};
\draw (127.5,90.92999999999999) node  [rotate=-60]  {$\mathtt{1}$};
\draw (120.0,77.94) node  [rotate=0]  {$\mathtt{1}$};
%draw delta piece: cba, (9, 3)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (135.0,77.94) -- (150.0,103.92) -- (165.0,77.94) -- cycle;
\draw (142.5,90.92999999999999) node  [rotate=60]  {$\mathtt{1\! 0}$};
\draw (157.5,90.92999999999999) node  [rotate=-60]  {$\mathtt{1}$};
\draw (150.0,77.94) node  [rotate=0]  {$\mathtt{0}$};
%draw nabla piece: cba, (8, 3)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (150.0,103.92) -- (135.0,77.94) -- (120.0,103.92) -- cycle;
\draw (142.5,90.93) node  [rotate=60]  {$\mathtt{1\! 0}$};
\draw (127.5,90.93) node  [rotate=-60]  {$\mathtt{1}$};
\draw (135.0,103.92) node  [rotate=0]  {$\mathtt{0}$};
%draw delta piece: bac, (4, 4)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (60.0,103.92) -- (75.0,129.9) -- (90.0,103.92) -- cycle;
\draw (67.5,116.91) node  [rotate=60]  {$\mathtt{1}$};
\draw (82.5,116.91) node  [rotate=-60]  {$\mathtt{0}$};
\draw (75.0,103.92) node  [rotate=0]  {$\mathtt{1\! 0}$};
%draw nabla piece: bac, (4, 3)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (90.0,103.92) -- (75.0,77.94) -- (60.0,103.92) -- cycle;
\draw (82.5,90.93) node  [rotate=60]  {$\mathtt{1}$};
\draw (67.5,90.93) node  [rotate=-60]  {$\mathtt{0}$};
\draw (75.0,103.92) node  [rotate=0]  {$\mathtt{1\! 0}$};
%draw nabla piece: aaa, (5, 4)
\draw [fill={rgb, 255:red, 248; green, 131; blue, 131 }] (105.0,129.9) -- (90.0,103.92) -- (75.0,129.9) -- cycle;
\draw (97.5,116.91000000000001) node  [rotate=60]  {$\mathtt{0}$};
\draw (82.5,116.91000000000001) node  [rotate=-60]  {$\mathtt{0}$};
\draw (90.0,129.9) node  [rotate=0]  {$\mathtt{0}$};
%draw delta piece: acb, (6, 4)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (90.0,103.92) -- (105.0,129.9) -- (120.0,103.92) -- cycle;
\draw (97.5,116.91) node  [rotate=60]  {$\mathtt{0}$};
\draw (112.5,116.91) node  [rotate=-60]  {$\mathtt{1\! 0}$};
\draw (105.0,103.92) node  [rotate=0]  {$\mathtt{1}$};
%draw nabla piece: acb, (7, 4)
\draw [fill={rgb, 255:red, 255; green, 255; blue, 255 }] (135.0,129.9) -- (120.0,103.92) -- (105.0,129.9) -- cycle;
\draw (127.5,116.91000000000001) node  [rotate=60]  {$\mathtt{0}$};
\draw (112.5,116.91000000000001) node  [rotate=-60]  {$\mathtt{1\! 0}$};
\draw (120.0,129.9) node  [rotate=0]  {$\mathtt{1}$};
%draw delta piece: aaa, (8, 4)
\draw [fill={rgb, 255:red, 248; green, 131; blue, 131 }] (120.0,103.92) -- (135.0,129.9) -- (150.0,103.92) -- cycle;
\draw (127.5,116.91) node  [rotate=60]  {$\mathtt{0}$};
\draw (142.5,116.91) node  [rotate=-60]  {$\mathtt{0}$};
\draw (135.0,103.92) node  [rotate=0]  {$\mathtt{0}$};

%draw boundary
\draw [line width=1.5] (30,0) -- (15,25.98) -- (75,129.9) -- (135,129.9) -- (165,77.94) -- (120,0) -- cycle;
\end{tikzpicture}
\end{document}