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Angkor
@Angkor
May 2019
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Quelqu'un pourrait m'aider svp merci
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chrystine
Verified answer
Bonjour
DEA est un triangle rectangle en E
d'après le théorème de pythagore on a:
DA²=ED²+EA²
DA²=6²+3.2²
DA²=36+10.24
DA=√46.24
DA=6.8 cm
Donc le quadrilatère ABCD est un carré, car il a 4 côtés de même longueur et 4 angles droits
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Verified answer
BonjourDEA est un triangle rectangle en E
d'après le théorème de pythagore on a:
DA²=ED²+EA²
DA²=6²+3.2²
DA²=36+10.24
DA=√46.24
DA=6.8 cm
Donc le quadrilatère ABCD est un carré, car il a 4 côtés de même longueur et 4 angles droits