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Sagot :

Bonjour,

a)

5 cm -> 15km

1 cm -> 15/5 => 3km

échelle:

1 cm -> 3 00 000cm

1/300 000

b)

2 cm -> 800m

1 cm -> 400m

1 cm = 4 000cm

échelle:

1/ 4 000

c)

0,5 cm -> 2 000m

1 cm -> 4 000m

échelle:

1 cm -> 4 00 000 cm

1/400 000

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