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ninon94800
@ninon94800
June 2021
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Bonjour tous le monde
qui pourrait m'aider svp à résoudre ce problème de géométrie
un grand merci d'avance
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Lilou64
Bonjour,
Dans le triangle RIE rectangle en I (pythagore)
RE² = RI² + IE²
donc RE² = 10,5² + 6² = 110,25 +36 = 146,25
Dans le triangle NRE rectangle en R
c'est la meme chose
NE²= NR²+ RE²
13,5² = NR²+ 146,25
DONC NR² = 13,5² - 146,25² = 182,25 - 146,25 = 36
alors NR = 36 = 6 cm et on constate que NR = EI
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qui peut m'aider uniquement exercice 1 c,d,e , f merci beaucoupo beaucoup
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Dans le triangle RIE rectangle en I (pythagore)
RE² = RI² + IE²
donc RE² = 10,5² + 6² = 110,25 +36 = 146,25
Dans le triangle NRE rectangle en R
c'est la meme chose
NE²= NR²+ RE²
13,5² = NR²+ 146,25
DONC NR² = 13,5² - 146,25² = 182,25 - 146,25 = 36
alors NR = 36 = 6 cm et on constate que NR = EI