Răspuns:
a) DC=AB-EF=>DC=16-9=7
AF=BC+DE=>AF=15+21=36
P=15+7+21+9+36+16=104
b)LS=QR=4
NM=OP=10
PQ=SP-(LM+NO)=30-15=15
P=10×3+4×2+5+15+30=88
