Question

va rog ajutati ma !!Cele incercuite

Answer 1

1) P=2x(L+l)
L=216 m
l=164 m
P=2x(216+164)
P=2x380
P=760 m


3) L=450m
l=L-150
l=450-150
l=300 m
P=2x(450+300)
P=2x750
P=1500 m

4) L=2240 m
l=2/4xL
l=2/4x2240
l=2x560
l=1120 m
P=2x(2240+1120)
P=2x3360
P=6720 m



5)l=12 m
L=2xl
L=2x12
L=24 m
P=2x(24+12)
P=2x36
P=72 m


7)L=172 m
l=L:2
l=172:2
l=86 m
Px4=?
P=2x(172+86)
P=2x258
P=516 m
Px4=516x4=2064 m sarma