AM-MB=36/2=18
ND/NA=1/2 NA=2ND NA=36/3 *2=24
CM=√(36²+18²)=√(1296+324)=√1620=18√5
CN=√(36²+12²)=√(1296+144)=√1440=12√10
NM=√(18²+24²)=√(324+576)=√900=30
P=18√5+12√10+30=6(3√5+2√10+5)
Apatrat = 36*36=1296
AΔCDN=36*12/2=216
AΔANM=18*24/2=216
AΔCBM=36*18/2=324
AΔCNM=1296-216-216-324=540
inaltimea triunghiului CE _I_NM
CE*30/2=540
d(C:MN)=CE=540*2/30=36
sin CMN=36/18√5=2√5/5
