Răspunsuri

2014-05-15T17:57:57+03:00
P patrat = 4l
p drept = 2L + 2l
L = 40
l = 2/4 x 40 = 2x10 = 20 m. => p drept = 2x40 + 2x20 = 140.
p patrat = 4l => 140 = 4l => l =35 m
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