Предмет: Математика, автор: ilajgavrilev

У Тани был набор одинаковых палочек. Она сложила из них большой треугольник, каждая сторона которого состоит из 19 палочек, и выложила внутри треугольника узор так, что треугольник оказался разбит на треугольнички со стороной 1 палочка (на рисунке — пример такого узора для треугольника со стороной 3 палочки). Сколько всего палочек использовала Таня?

Ответы

Автор ответа: adilbekkulmagambetov

Ответ:

13 палочек использовала таня если не верно то прости

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