%\exo{}
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%\marginpar{\footnotesize 3G10-2}	\textbf {a.}  Donner le numéro de l'image du point 87 par la translation qui transforme M en N.
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%\medskip
%\textbf {b.}  Donner le numéro de l'image du point 8 par l'homothétie de centre O et de rapport $\dfrac{1}{4}$.
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%\medskip
%\textbf {c.}  Donner le numéro de  l'image du point 85 par la rotation de centre O et d'angle 90° dans le sens anti-horaire.
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%\medskip
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	\draw [black,fill opacity = 1] (-4.2,3.8) node[anchor = center,scale=0.8] {80};
	
	\draw[opacity = 0.8] (-3.15,4.15)--(-2.85,3.85);
	\draw[opacity = 0.8] (-3.15,3.85)--(-2.85,4.15);
	\draw [black,fill opacity = 1] (-3.2,3.8) node[anchor = center,scale=0.8] {81};
	
	\draw[opacity = 0.8] (-2.15,4.15)--(-1.85,3.85);
	\draw[opacity = 0.8] (-2.15,3.85)--(-1.85,4.15);
	\draw [black,fill opacity = 1] (-2.2,3.8) node[anchor = center,scale=0.8] {82};
	
	\draw[opacity = 0.8] (-1.15,4.15)--(-0.85,3.85);
	\draw[opacity = 0.8] (-1.15,3.85)--(-0.85,4.15);
	\draw [black,fill opacity = 1] (-1.2,3.8) node[anchor = center,scale=0.8] {83};
	
	\draw[opacity = 0.8] (-0.15,4.15)--(0.15,3.85);
	\draw[opacity = 0.8] (-0.15,3.85)--(0.15,4.15);
	\draw [black,fill opacity = 1] (-0.2,3.8) node[anchor = center,scale=0.8] {84};
	
	\draw[opacity = 0.8] (0.85,4.15)--(1.15,3.85);
	\draw[opacity = 0.8] (0.85,3.85)--(1.15,4.15);
	\draw [black,fill opacity = 1] (0.8,3.8) node[anchor = center,scale=0.8] {85};
	
	\draw[opacity = 0.8] (1.85,4.15)--(2.15,3.85);
	\draw[opacity = 0.8] (1.85,3.85)--(2.15,4.15);
	\draw [black,fill opacity = 1] (1.8,3.8) node[anchor = center,scale=0.8] {86};
	
	\draw[opacity = 0.8] (2.85,4.15)--(3.15,3.85);
	\draw[opacity = 0.8] (2.85,3.85)--(3.15,4.15);
	\draw [black,fill opacity = 1] (2.8,3.8) node[anchor = center,scale=0.8] {87};
	
	\draw[opacity = 0.8] (3.85,4.15)--(4.15,3.85);
	\draw[opacity = 0.8] (3.85,3.85)--(4.15,4.15);
	\draw [black,fill opacity = 1] (3.8,3.8) node[anchor = center,scale=0.8] {88};
	
	\draw[opacity = 0.8] (4.85,4.15)--(5.15,3.85);
	\draw[opacity = 0.8] (4.85,3.85)--(5.15,4.15);
	\draw [black,fill opacity = 1] (4.8,3.8) node[anchor = center,scale=0.8] {89};
	
	\draw[opacity = 0.8] (-4.15,5.15)--(-3.85,4.85);
	\draw[opacity = 0.8] (-4.15,4.85)--(-3.85,5.15);
	\draw [black,fill opacity = 1] (-4.2,4.8) node[anchor = center,scale=0.8] {90};
	
	\draw[opacity = 0.8] (-3.15,5.15)--(-2.85,4.85);
	\draw[opacity = 0.8] (-3.15,4.85)--(-2.85,5.15);
	\draw [black,fill opacity = 1] (-3.2,4.8) node[anchor = center,scale=0.8] {91};
	
	\draw[opacity = 0.8] (-2.15,5.15)--(-1.85,4.85);
	\draw[opacity = 0.8] (-2.15,4.85)--(-1.85,5.15);
	\draw [black,fill opacity = 1] (-2.2,4.8) node[anchor = center,scale=0.8] {92};
	
	\draw[opacity = 0.8] (-1.15,5.15)--(-0.85,4.85);
	\draw[opacity = 0.8] (-1.15,4.85)--(-0.85,5.15);
	\draw [black,fill opacity = 1] (-1.2,4.8) node[anchor = center,scale=0.8] {93};
	
	\draw[opacity = 0.8] (-0.15,5.15)--(0.15,4.85);
	\draw[opacity = 0.8] (-0.15,4.85)--(0.15,5.15);
	\draw [black,fill opacity = 1] (-0.2,4.8) node[anchor = center,scale=0.8] {94};
	
	\draw[opacity = 0.8] (0.85,5.15)--(1.15,4.85);
	\draw[opacity = 0.8] (0.85,4.85)--(1.15,5.15);
	\draw [black,fill opacity = 1] (0.8,4.8) node[anchor = center,scale=0.8] {95};
	
	\draw[opacity = 0.8] (1.85,5.15)--(2.15,4.85);
	\draw[opacity = 0.8] (1.85,4.85)--(2.15,5.15);
	\draw [black,fill opacity = 1] (1.8,4.8) node[anchor = center,scale=0.8] {96};
	
	\draw[opacity = 0.8] (2.85,5.15)--(3.15,4.85);
	\draw[opacity = 0.8] (2.85,4.85)--(3.15,5.15);
	\draw [black,fill opacity = 1] (2.8,4.8) node[anchor = center,scale=0.8] {97};
	
	\draw[opacity = 0.8] (3.85,5.15)--(4.15,4.85);
	\draw[opacity = 0.8] (3.85,4.85)--(4.15,5.15);
	\draw [black,fill opacity = 1] (3.8,4.8) node[anchor = center,scale=0.8] {98};
	
	\draw[opacity = 0.8] (4.85,5.15)--(5.15,4.85);
	\draw[opacity = 0.8] (4.85,4.85)--(5.15,5.15);
	\draw [black,fill opacity = 1] (4.8,4.8) node[anchor = center,scale=0.8] {99};
	
	\draw[opacity = 0.8] (2.85,4.15)--(3.15,3.85);
	\draw[opacity = 0.8] (2.85,3.85)--(3.15,4.15);
	\draw[opacity = 0.8] (1.85,-0.85)--(2.15,-1.15);
	\draw[opacity = 0.8] (1.85,-1.15)--(2.15,-0.85);
	\draw[opacity = 0.8] (1.85,-2.85)--(2.15,-3.15);
	\draw[opacity = 0.8] (1.85,-3.15)--(2.15,-2.85);
		\draw (2,-1) node[right] {$M$};
	\draw (2,-3) node[right] {$N$};

	
	\draw[opacity = 0.8] (3.85,-3.85)--(4.15,-4.15);
	\draw[opacity = 0.8] (3.85,-4.15)--(4.15,-3.85);
		
	\draw[opacity = 0.8] (0.85,4.15)--(1.15,3.85);
	\draw[opacity = 0.8] (0.85,3.85)--(1.15,4.15);
	\draw[opacity = 0.8] (-0.15,0.15)--(0.15,-0.15);
	\draw[opacity = 0.8] (-0.15,-0.15)--(0.15,0.15);
		\draw (0,0) node[right] {$O$};


\end{tikzpicture}

%
%	\textbf {a.}  L'image du point 87 par la translation qui transforme M en N est le point 67.
%
%\medskip
%\textbf {b.}  L'image du point 8 par l'homothétie de centre O et de rapport $\dfrac{1}{4}$ est le point 35.
%
%\medskip
%\textbf {c.}  L'image du point 85 par la rotation de centre O et d'angle 90° dans le sens anti-horaire est le point 50.
%
