Question

5 6 7 9
Va rog frumos sa ma ajuta.ti

Answer 1

5)0.6m=60cm
2/3=60:3x2=40m
L=60cm
l=40cm
P=60x2+40x2=200cm
A=60x40=240cm

6)P=127
L=l+4.8
2l+2l+4.8x2=127
4l=127-9.6
4l=117.4
l=117.4:4=29.35
L=29.35+4.8=34.15
A=34.15x29.35=1002.3025

7)P=1.84m
1.84m=184cm
L=3l
3lx2+2l=184
8l=184
l=184:8=23
L=23x3=69
A=69x23=1587cm

Si ex 9 nu se vede!