bonjour
DKA est rectangle en K
AK² = DA² - DK²
AK² = 60² - 11 ² = 3 479
AK = √3 479 ≅ 59 cm
AP/AD = AH/AK = PH/DK
15/60 = PH / 11
PH = 2.75 cm
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bonjour
DKA est rectangle en K
AK² = DA² - DK²
AK² = 60² - 11 ² = 3 479
AK = √3 479 ≅ 59 cm
AP/AD = AH/AK = PH/DK
15/60 = PH / 11
PH = 2.75 cm