Предмет: Математика, автор: masha2018ya

Довжина однієї сторони трикутника дорівнює 10 см , а друга в три раза більше за третю. Обчисліть невідомі довжини трикутника якщо його периметр 26 см

Ответы

Автор ответа: grif5planet
3

Ответ:вторая сторона 12см, третья 4см

Пошаговое объяснение:Равс=26

ав=10, вс=3х, са=х

1) 10+3х+х=26

4х=26-10

4х=16

х=4

2) 3*4=12

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