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3 years ago

Un trapèze a une aire de 39 cm2. Sa grande base

Mathematics

1 answer:

V125BC [204]3 years ago

6 0

Answer:

A = bh/2

39 = b*3/2

39*2 = b*3/2 * 2

78 = b*3

78/3 = b*3/3

26 = b.

Alors, la grande base est 26 cm et le petit base serait 26/3 = 8.67 cm arrondi.

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