Missing

\title{Stade}
\language{fr}
\range{-5..5}
\author{Odile Bénassy}
\email{obenassy@free.fr}
\computeanswer{no}
\format{html}
\precision{100}

\integer{questionitem=random(1,2)}
\integer{a1=random(11..48)}
\integer{b1=random(21..70)}
\integer{c1=random(11..24)}
\if{\a1>\b1}{
\integer{swap=\a1}
\integer{a1=\b1}
\integer{b1=\swap}
}

\real{l=\a1}
\real{L=\b1}
\real{r=\c1}

\real{A= (\l*\L) + (pi * (\r)^2) - (4*(\r)^2)}


\statement{


<p><center>


\draw{600, 400}{
xrange -300,300
yrange -200,200

darrow -20,130,-210,130,8,black
darrow 20,130,210,130,8,black
text black,-10,137,normal,\L
dline -210,130,-210,60,green
dline 210,130,210,60,green

darrow -220,20,-220,120,8,black
darrow -220,-20,-220,-120,8,black
text black,-230,10,normal,\l
dline -220,120,-150,120,green
dline -220,-120,-150,-120,green

text black, -145,90,normal,\r

line -150,120,150,120,black
line -150,-120,150,-120,black
line -210,60,-210,-60,black
line 210,60,210,-60,black

arc -150,60,122,122,90,180,black
arc 150,60,122,122,0,90,black
arc 150,-60,122,122,270,360,black
arc -150,-60,122,122,180,270,black

dline -210,60,210,60,black
dline -150,-120,-150,120,black
dline -210,-60,210,-60,black
dline 150,-120,150,120,black

line -157,60,-157,67,green
line -157,67,-150,67,green


fill 0,0,lawngreen
}

</center> 

<p>Quelle est l'aire du stade ?

<br><i>(calculer le résultat)</i>
}

\answer{Aire du stade}{\A}{type=numeric}