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Tag54
@Tag54
May 2019
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Bonsoir, svp aidez moi en math pour l'exercice numéro 2 je n'ai rien compris. Merci d'avance.
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mamieyo
1ère figure
P = 2(x+3) + 4(2x) = 2x + 6 +8x = 10x + 6
2ème figure
P = 3(x) + (2x2) + 2(x+4) = 3x + 4 + 2x +8 = 5x + 12
pour x=3: P1 = 10*3 +6 = 30 + 6 = 36
P2 = 5*3 +12 = 15 + 12 = 27
la 1ère figure a un périmètre plus grand que celui de la 2ème figure
pour x=3/5: P1 = 10*3/5 + 6 = 6 + 6 = 12
P2 = 5*3/5 + 12 = 3 + 12 = 15
la 2ème figure a un périmètre plus grand que celui de la 1ère figure
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Tag54
Merci pour ton aide c'est super gentil(e).
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P = 2(x+3) + 4(2x) = 2x + 6 +8x = 10x + 6
2ème figure
P = 3(x) + (2x2) + 2(x+4) = 3x + 4 + 2x +8 = 5x + 12
pour x=3: P1 = 10*3 +6 = 30 + 6 = 36
P2 = 5*3 +12 = 15 + 12 = 27
la 1ère figure a un périmètre plus grand que celui de la 2ème figure
pour x=3/5: P1 = 10*3/5 + 6 = 6 + 6 = 12
P2 = 5*3/5 + 12 = 3 + 12 = 15
la 2ème figure a un périmètre plus grand que celui de la 1ère figure