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Lorette
@Lorette
April 2019
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Je n'arrive pas la première question de l'exercice 40.
Quelqu'un pourrais m'aider avec des explications si possible svp?
Merci.
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slyz007
Verified answer
On sait que OH=2 et OL=3
H est l milieu de KL car OKL est isocèle
Par Pythagore:
OL²=OH²+HL²
Donc HL²=OL²-OH²=3²-2²=9-4=5
HL=√5
Donc KL=2√5
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Verified answer
On sait que OH=2 et OL=3H est l milieu de KL car OKL est isocèle
Par Pythagore:
OL²=OH²+HL²
Donc HL²=OL²-OH²=3²-2²=9-4=5
HL=√5
Donc KL=2√5