Răspunsuri

2014-05-16T09:14:06+03:00

Ionut ti`o dau eu in clasa :))


L=3 ori latura

P= 2x3xl+2xl             x=ori

128=8l

l=128 : 8

l=16 cm

L= 3x16

L=48cm

A=Lxl

A=16x48

A=768 cm patrati 


2014-05-16T09:16:39+03:00
L=lx3
P=Lx2+lx2
P=lx3x2+lx2=lx8
128cm=lx8
l=128cm:8
l=16cm
L=16cmx3=48cm
Aria patratului=Lxl=16cmx48cm=768cm patrati