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Calculeaza perimetrul unor pătrate care au latura de 12 cm 28 M 40 mm​

Răspuns :

12 cm ( 12 × 4 = 48 cm)

28 m ( 28 × 4 = 112 m)

40 mm ( 40 × 4 = 160 mm)

l=12 cm

P=4×12=48 cm

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l=28 m

P=4×l=4×28=112 m

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l=40 mm

P=4×l=4×40=160 mm