\tikzmath{\t=0.8;}
\tikzmath{\size=2;}
\coordinate (A) at (0,0);
\coordinate (B) at (0,\size);
\coordinate (C) at (\size,0);
\coordinate (D) at (\size,\size);

\coordinate (T) at ($(A)!0.5!(C)$);
\coordinate (T) at ($(T)-(0,0.75)$);

\coordinate (Delta) at (1.75*\size,0);


%1st

\input{02/10/1.tikz}

%2nd
\input{02/10/Translate.tikz}
 
 
\input{02/10/1.tikz}
\input{02/10/2.tikz}
 
 
 %3rd
\input{02/10/Translate.tikz}
 
\input{02/10/1.tikz}
\input{02/10/2.tikz}
\input{02/10/3.tikz}

%4th
\input{02/10/Translate.tikz}

\tikzmath{\t=1;}

\input{02/10/1.tikz}
\input{02/10/2.tikz}
\input{02/10/3.tikz}
\input{02/10/4.tikz}

\node at (T) {$\therefore t \cap u=D$};
