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missdu62
@missdu62
June 2021
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URGENT, j'ai un dm de maths pour demain et j'ai deux exercices que je n'ai pas compris.. Pourriez vous m'aidez s'il vous plait ? Merci d'avance
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hlaissisaad
1)
v1 = 1/3 (aire de (ABCD) * la heuteur (BF) ) = 1/3 * AB * BC * BF = 1/3 *5*4*3 = 20 cm3
2) v2 = 1/3 (aire de (ADHE) * la heuteur (EF) ) = 1/3 * AD * AE * EF = 1/3 * BC * BF * AB = 1/3 *5*4*3 = 20 cm3 car EF = AB BF = AE AD=BC
3) v1 = v2
V = AB * BC * BF = 60 cm3
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2) v2 = 1/3 (aire de (ADHE) * la heuteur (EF) ) = 1/3 * AD * AE * EF = 1/3 * BC * BF * AB = 1/3 *5*4*3 = 20 cm3 car EF = AB BF = AE AD=BC
3) v1 = v2
V = AB * BC * BF = 60 cm3