Răspuns :
Răspuns:
P= NO+OP+PQ+QR+RS+SL+LM+MN
P= 10+10+30-10+4+30+4+10
P=88 cm
A= A (NOPM) + A (LSRQ) =100 + 120= 220 cm^2
A (NOPM) = NO^2=100 cm^2
A (LSRQ) =L*l=30*4=120 cm^2
Răspuns:
P= NO+OP+PQ+QR+RS+SL+LM+MN
P= 10+10+30-10+4+30+4+10
P=88 cm
A= A (NOPM) + A (LSRQ) =100 + 120= 220 cm^2
A (NOPM) = NO^2=100 cm^2
A (LSRQ) =L*l=30*4=120 cm^2