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Nekfeu1
@Nekfeu1
May 2019
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Exercice 4 Le triangle BCE est-il rectangle ? expliquer . merci
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Bonjour
BE² = 18 ² + 20 ²
BE² = 724
BE = √724 ≈ 27 cm
CB² = 13² + 14 ²
CB² = 365
cb = √ 365 ≈ 19 cm
BCE est t-il rectangle ?
33² = 365 + 724
1089 = 1089 donc oui il est rectangle
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BE² = 18 ² + 20 ²
BE² = 724
BE = √724 ≈ 27 cm
CB² = 13² + 14 ²
CB² = 365
cb = √ 365 ≈ 19 cm
BCE est t-il rectangle ?
33² = 365 + 724
1089 = 1089 donc oui il est rectangle