urgent varog dau coroana
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Explicație pas cu pas:
L=√5+√5=2√5
lungimea gardului=perimetrul grădinii
P=2×l + 2×L
=2×√5 + 2×2√5
=2√5+4√5=6√5cm
A=L×l=√5×2√5
=2×√5×5=2×√25
=2×5=10cm