Предмет: Математика, автор: prospect81

Рівнобедрений трикутник, основа якого дорівнює 8 см, а бічна сторона – 11 см, має такий самий периметр, як рівносторонній трикутник. Знайдіть сторону рівностороннього трикутника.

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Автор ответа: tetamotatetyamotya

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