1.
P=[8,4+(8,4/2)]*2
P=25.2
2.
A=1,6*(1,6-0.12)
A=1,6*1,48
A=2,368 M
3.
P=134m
P=(L+l)*2
l=L*0.75-4
134=(L*1+L*0.75-4)*2
134=(L*1.75-4)*2
134=L*3.5-8
L*3.5=134+8
L*35/10=142
L*35=1420
L=1420/35
L=40.(571428)
l=L*0.75-4
l=40.(571428)*0.75-4
l=26.428571
A=L*l
A=40.(571428)*26.428571
A=1072.244865
Sper ca te-am ajutat!