\begin{exercice}
 D'après le codage, quelle est la nature de chacun des triangles et quadrilatère ci-dessous?
 \begin{center}
  \begin{tikzpicture}[general, scale=0.6]
\draw[color=B2] (0,8) node{\bfseries 1)};
\draw (1,6)--(3,6)--(2,8)--cycle;
\draw (1.5,7) node[rotate=-26.57, color=A1] {{\boldmath $\approx$}};
\draw (2.5,7) node[rotate=26.57, color=A1] {{\boldmath $\approx$}};
\draw[color=B2] (4,8) node{\bfseries 2)};
\draw (5,6)--(7,6)--(6,7.73)--cycle;
\draw (6,6) node[rotate=90, color=A1] {{\boldmath $\approx$}};
\draw (6.5,6.87) node[rotate=30, color=A1] {{\boldmath $\approx$}};
\draw (5.5,6.87) node[rotate=-30, color=A1] {{\boldmath $\approx$}};
\draw[color=B2] (8,8) node{\bfseries 3)}; 
\draw (9,6)--(11,6)--(11,8)--(9,8)--cycle;
\draw (10,6) node[rotate=90, color=A1] {{\boldmath $\approx$}};
\draw (10,8) node[rotate=90, color=A1] {{\boldmath $\approx$}};
\draw (9,7) node[color=C1] {{\boldmath $\infty$}};
\draw (11,7) node[color=C1] {{\boldmath $\infty$}};
\draw[color=B2] (0,5) node{\bfseries 4)}; 
\draw (1,3)--(3,3)--(3,5)--(1,5)--cycle;
\draw (1,3) rectangle (1.3,3.3);
\draw (3,3) rectangle (2.7,3.3);
\draw (1,5) rectangle (1.3,4.7);
\draw[color=B2] (4,5) node{\bfseries 5)}; 
\draw (5,3)--(7,3)--(7,5)--(5,5)--cycle;
\draw (5,3) rectangle (5.3,3.3);
\draw (6,5) node[rotate=90, color=A1] {{\boldmath $\approx$}};
\draw (6,3) node[rotate=90, color=A1] {{\boldmath $\approx$}};
\draw (5,4) node[color=C1] {{\boldmath $\infty$}};
\draw (7,4) node[color=C1] {{\boldmath $\infty$}};
\draw[color=B2] (8,5) node{\bfseries 6)}; 
\draw (9,3)--(11,3)--(11,5)--(9,5)--cycle;
\draw (10,3) node[rotate=90, color=A1] {{\boldmath $\approx$}};
\draw (10,5) node[rotate=90, color=A1] {{\boldmath $\approx$}};
\draw (9,4) node[color=A1] {{\boldmath $\approx$}};
\draw (11,4) node[color=A1] {{\boldmath $\approx$}};
\draw[color=B2] (0,2) node{\bfseries 7)}; 
\draw (1,0)--(3,0)--(3,2)--(1,2)--cycle;
\draw (1,0)--(3,2);
\draw (1,2)--(3,0);
\draw[shift={(2,1)}, rotate=45] (0,0) rectangle (0.3,0.3);
\draw (1.5,1.5) node[color=A1, rotate=45] {{\boldmath $\approx$}};
\draw (2.5,0.5) node[color=A1, rotate=45] {{\boldmath $\approx$}};
\draw (1.5,0.5) node[color=C1, rotate=-45] {{\boldmath $\infty$}};
\draw (2.5,1.5) node[color=C1, rotate=-45] {{\boldmath $\infty$}};
\draw[color=B2] (4,2) node{\bfseries 8)}; 
\draw (5,0)--(7,0)--(7,2)--(5,2)--cycle;
\draw (5,0)--(7,2);
\draw (5,2)--(7,0);
\draw (5.5,1.5) node[color=A1, rotate=45] {{\boldmath $\approx$}};
\draw (6.5,0.5) node[color=A1, rotate=45] {{\boldmath $\approx$}};
\draw (5.5,0.5) node[color=A1, rotate=-45] {{\boldmath $\approx$}};
\draw (6.5,1.5) node[color=A1, rotate=-45] {{\boldmath $\approx$}};
\draw[color=B2] (8,2) node{\bfseries 9)}; 
\draw (9,0)--(11,0)--(11,2)--(9,2)--cycle;
\draw (9,0)--(11,2);
\draw (9,2)--(11,0);
\draw[shift={(10,1)}, rotate=45] (0,0) rectangle (0.3,0.3);
\draw (9.5,1.5) node[color=A1, rotate=45] {{\boldmath $\approx$}};
\draw (10.5,0.5) node[color=A1, rotate=45] {{\boldmath $\approx$}};
\draw (9.5,0.5) node[color=A1, rotate=-45] {{\boldmath $\approx$}};
\draw (10.5,1.5) node[color=A1, rotate=-45] {{\boldmath $\approx$}};
  \end{tikzpicture}
 \end{center}
\begin{corrige}
 \begin{enumerate}
  \item isocèle
  \item équilatéral
  \item parallélogramme
  \item rectangle
  \item rectangle
  \item losange
  \item losange
  \item rectangle
  \item carré
 \end{enumerate}
 \end{corrige}
\end{exercice}
