Ответ:
2) ∠С=90° ⇒ ∠А+∠В=180°-90°=90° ,
∠А=х , ∠В=2х ⇒ х+2х=90° , 3х=90° , х=30° , 2х=60°
∠А=30° , ∠В=60°
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Ответ:
2) ∠С=90° ⇒ ∠А+∠В=180°-90°=90° ,
∠А=х , ∠В=2х ⇒ х+2х=90° , 3х=90° , х=30° , 2х=60°
∠А=30° , ∠В=60°