%@metapost:3Scratchexo10-scratch.mp On dispose du bloc supplémentaire \raisebox{-6pt}{\includegraphics{3Scratchexo10-scratch.1}} défini par \[\includegraphics{3Scratchexo10-scratch.2}\] \begin{Enumerate} \item Créer ce nouveau bloc et observer le résultat. \item Proposer un algorithme permettant d'obtenir chacune des figures ci-dessous. \[\mbox{\ding{172}}\kern0.02\linewidth\includegraphics{3Scratchexo10.1}\kern0.1\linewidth\mbox{\ding{173}}\kern0.02\linewidth\includegraphics{3Scratchexo10.2}\kern0.1\linewidth\mbox{\ding{174}}\kern0.02\linewidth\includegraphics{3Scratchexo10.3}\] \item Créer un nouveau bloc \raisebox{-6pt}{\includegraphics{3Scratchexo10-scratch.3}} permettant de dessiner une ligne \og pointillés\fg. \[\includegraphics{3Scratchexo10.4}\] \item Utiliser les blocs \raisebox{-6pt}{\includegraphics{3Scratchexo10-scratch.1}} et \raisebox{-6pt}{\includegraphics{3Scratchexo10-scratch.3}} afin de construire les figures ci-dessous. \[\mbox{\ding{175}}\kern0.02\linewidth\includegraphics{3Scratchexo10.5}\kern0.1\linewidth\mbox{\ding{176}}\kern0.02\linewidth\includegraphics{3Scratchexo10.6}\]\medskip\[\mbox{\ding{177}}\kern0.02\linewidth\includegraphics{3Scratchexo10.7}\] \end{Enumerate}