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JPMORIN3

bonjour

aire = L x l

3 x 10⁻³ x 2,5 x 10⁻⁵ = 3 x 2,5 x 10⁻³⁻⁵ = 7,5 x 10⁻⁸ (m²)

périmètre = 2L + 2l

2 x 3 x 10⁻³  + 2 x 2,5 x 10⁻⁵ =

6 x 10⁻³ + 5 x 10⁻⁵ =

0,006 + 0,00005 =

0,00605 =

6,05 x 10⁻³ (m)

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