Предмет: Геометрия, автор: shefnerolga4

Докажите,что каждый угол равностороннего треугольника равен 60°.

Ответы

Автор ответа: 1456и7а6р

сумма углов треугольника равна 180° если он равносторонний то 180°/3=60°

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