[014 아키미드] 격자대학교 수학과

  \begin{tikzpicture}
    \coordinate (A) at (0,3) node at (A)[left]{A};
    \coordinate (B) at (4.2,3.9) node at (B)[right]{B};
    \coordinate (C) at (3,0) node at (C)[below]{C};
\filldraw [orange!20!white](A)--(B)--(C)--cycle;
    %　塗り 
    \fill [color=cyan!10!white](1,1)--(1.4,1.3)--(2,1.3)--(2,1)--(1,1)--cycle;
    \fill [color=cyan!20!white](1,1)--(1.4,1.3)--(1.4,2)--(1,2)--(1,1)--cycle;
    \fill [color=cyan!40!white](1.4,3.3)--(1.8,3.3)--(1.8,3.6)--(1.4,3.3)--cycle;
    \fill [color=cyan!20!white](1.8,3.6)--(2.8,3.6)--(2.4,3.3)--(1.8,3.3)--cycle;
    \fill [color=cyan!30!white](1.4,1.3)--(1.4,1.6)--(1.8,1.6)--cycle;
    \fill [color=cyan!50!white](1.4,1.3)--(1.8,1.6)--(1.8,1.3)--cycle;
    \fill [color=cyan!70!white](1.8,1.3)rectangle(2,1.6);
    \fill [color=cyan!60!white](1.4,1.6)rectangle(1.8,2);
    \fill [color=cyan!90!white](1.8,1.6)rectangle(2,2);
    \fill [color=cyan!40!white](3.4,1.3)--(3.8,1.6)--(3.4,1.6)--cycle;
    \fill [color=cyan!20!white](3.4,2.3)--(3.8,2.6)--(3.8,1.6)--(3.4,1.6)--cycle;
% 大きい四角形
     \draw [very thick](0,0) rectangle (3,3);
% 小さい四角形
     \draw [very thick](1,1) rectangle (2,2);
% 奥行きのある四角形
     \draw [very thick](0,3) -- (1.2,3.9)--(4.2,3.9)--(4.2,0.9)--(3,0);
     \draw [very thick](3,3) --(4.2,3.9);
    %  真ん中の線
     \draw [thick](1,1) --(1.4,1.3)--(1.4,2);
     \draw [thick](1.4,1.3)--(2,1.3);
      \draw (1.4,1.3)--(2,1.75);
      \draw (1.8,2)--(1.8,1.3);
      \draw (1.4,1.6)--(2,1.6);
     %  上の小さい四角
     \draw [very thick](1.4,3.3) -- (2.4,3.3)--(2.8,3.6)--(1.8,3.6)--(1.4,3.3)--cycle;
     \draw [thick](1.8,3.6) --(1.8,3.3);
%  右の小さい四角
     \draw [very thick](3.4,1.3) -- (3.8,1.6)--(3.8,2.6)--(3.4,2.3)--(3.4,1.3)--cycle;
     \draw [thick](3.8,1.6) --(3.4,1.6);
% 縦の点線         
\draw [dotted](1.4,3.3)--(1.4,0.3);
\draw [dotted](2.4,3.3)--(2.4,0.3);
\draw [dotted](2.8,3.6)--(2.8,0.6);
\draw [dotted](1.8,3.6)--(1.8,0.6);
%  下の小さい四角
\draw [dashed](1.4,0.3) -- (2.4,0.3)--(2.8,0.6)--(1.8,0.6)--(1.4,0.3)--cycle;
% 横の点線         
\draw [dotted](0.4,1.3)--(3.4,1.3);
\draw [dotted](0.8,1.6)--(3.8,1.6);
\draw [dotted](0.8,2.6)--(3.8,2.6);
\draw [dotted](0.4,2.3)--(3.4,2.3);
%  左の小さい四角
\draw [dashed](0.4,1.3) -- (0.8,1.6)--(0.8,2.6)--(0.4,2.3)--(0.4,1.3)--cycle;
% 奥の小さい四角形
\draw [dashed](2.2,1.9) rectangle (3.2,2.9);
% 斜めの点線         
\draw [dotted](1,1)--(2.2,1.9);
\draw [dotted](2,1)--(3.2,1.9);
\draw [dotted](2,2)--(3.2,2.9);
\draw [dotted](1,2)--(2.2,2.9);
% 透明の点線
\draw [dashed](0,0)--(1.2,0.9);
\draw [dashed](1.2,3.9)--(1.2,2);
\draw [dashed](1.2,0.9)--(4.2,0.9);

\end{tikzpicture}