Предмет: Математика, автор: corludmila733

основа рівнобедреного трикутника =20 см знайдіть його бічну сторону якщо периметр трикутника =56 см

Ответы

Автор ответа: sofiavinokurova13

1

Ответ:

56-20=36

36:2=18

відповідь: 18 см кожна сторона

Пошаговое объяснение:

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