bonjour
1 cm plan = 500 000 cm réels
20.5 cm plan = 10 250 000 cm réels = 102.5 km
3 cm plan = 15 cm réels
1 cm plan = 5 cm réels
échelle = 1 /5
Bonsoir,
1)
1cm -> 500 000cm
20,5 * 500 000 = 10 250 000cm = 102,50km
2)
30mm -> 15cm
3cm -> 15 cm
15/3 => 5cm
échelle: 1/5
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bonjour
1 cm plan = 500 000 cm réels
20.5 cm plan = 10 250 000 cm réels = 102.5 km
3 cm plan = 15 cm réels
1 cm plan = 5 cm réels
échelle = 1 /5
Bonsoir,
1)
1cm -> 500 000cm
20,5 * 500 000 = 10 250 000cm = 102,50km
2)
30mm -> 15cm
3cm -> 15 cm
15/3 => 5cm
échelle: 1/5