Предмет: Математика, автор: anastasiarusina13

обчисліть сторони паралелограма якщо його периметр дорівнює 42 см і різниця сторін дорівнює 7 см​

Ответы

Автор ответа: Krachkovskanastya
0

Ответ:

Сторони паралелограма дорівнюють 7 см і 14 см.

Пошаговое объяснение:

Якщо   менша   сторона   паралелограма дорівнює х, то більша дорівнює х + 7. Маємо рівняння 2{х + х + 7) =

-  42; 2х + 7 = 21; 2х = 21 - 7; 2* = 14; х = 7. Тоді х = 7 = 14. Сторони паралелограма дорівнюють 7 см і 14 см.

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