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# Les angles d'un triangle isocèle

Vous pourriez avoir besoin de : la calculatrice

## Problème

Quelle la valeur de x question mark
x, equals
$\operatorname{}$
A triangle with angle x degrees and its opposite side has a length of five, an angle of seventy degrees and its opposite side has a length of five point seven, and its third side has a length of five.
Bloqué(e) ?
Bloqué(e) ?