Răspunsuri

2014-05-01T10:39:32+03:00
A) P=32 m
L=3l
P=2 (L+l)=2l + 2L
32=2×3l+2l
32=8l
l=4 (m)
L=3×4=12 (m)

b) P=64 m
L=3l
P=2L+2l
64=2L+2l
64=2×3l+2l
64=8l
l=8
L=3×8=24(m)
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