%% auteur : 

-1 11 setxrange
-2 4 setyrange
30 setxunit
30 setyunit
.7 setlinewidth

/A{0 1} def
/B{1 3} def
/C{2 0} def
/M{7 -1} def
/N{10 2} def
/P{5 1} def
[M N P] polygone
[A B C] polygone



setTimes
(A)  A [1.5 1.5] dltext
(B) B [1.5 1.5] urtext
(C) C [1.5 1.5] drtext
(M)  M [1.5 1.5] dltext
(N) N [1.5 1.5] urtext
(P) P [1.5 1.5] utext
(3) A B milieu ltext
(2,5) A C milieu dtext
(5) B C milieu rtext
(4,5) M N milieu dtext
(7,5) N P milieu utext

<latex>
$\frac{15}{4}$
</latex>
M P milieu  [1.5 1.5] dltexlabel