1 %!TEX program = pdflatex 2 documentclass[varwidth=true, border=2pt]{standalone} 3 4 usepackage{tikz} 5 usepackage{mathpazo} 6 7 usetikzlibrary{arrows} 8 usetikzlibrary{decorations.markings} 9 10 egin{document} 11 egin{tikzpicture}[x=.5cm,y=.5cm] 12 draw [<->,>=stealth'] (0,8) node [label = left:{$y$}]{} -- (0,0) -- (12,0) node[label = below:{$x$}]{}; 13 grid[xstep=.5cm, ystep=.5cm] (4,4); 14 draw (0,0) -- (5*1.414,0) -- (5+5*1.414,5) -- (5,5) -- cycle; 15 draw[fill=green!10] (0,0) -- (5*1.414,0) -- (5+5*1.414,5) -- (5,5) -- cycle; 16 draw (0,0)node[label = below:{$(0,0)$}]{}; 17 draw (5*1.414,0)node[label = below:{$(sqrt{2},0)$}]{}; 18 draw (5+5*1.414,5)node[label = above:{$(sqrt{2}+1,1)$}]{}; 19 draw (5,5)node[label = above:{$(1,1)$}]{}; 20 end{tikzpicture} 21 end{document}