Предмет: Геометрия, автор: mrmilkalii

СРОЧНО!! Знайдіть сторони паралелограма КМNL, периметр якого дорівнює 84 см, а одна із сторін у 6 разів менша за іншу.

Ответы

Автор ответа: dobra888

3

Відповідь: 36 см , 6 см , 36 см , 6 см .

Пояснення:

Нехай в паралелограмі КМNL сторона КМ = х см , тоді

МN = 6х см . Р пар = 2( a + b ) .

Рівняння : 2( х + 6х ) = 84 ;

14х = 84 ;

х = 84 : 14 ;

х = 6 см ; 6х = 6 * 6 = 36 ( см ) .

В - дь : 36 см , 6 см , 36 см , 6 см .

mrmilkalii: спасибо

Автор ответа: OblivionFire

2

Завдання: Знайдіть сторони паралелограма КМNL, периметр якого дорівнює 84 см, а одна із сторін у 6 разів менша за іншу.

Розв'язання:

Дано: КМNL - паралелограм, Р=84 см, КМ більше МN у 6 разів. Знайти: КМ, МN, KL, LN.

Нехай МN=x, тоді КМ=6х. За властивістю паралелограма: Р=2·(КМ+МN). Складемо і роз'яжемо рівняння:

2·(х+6х)=84; 2·7х=84; 14х=84; х=6, тоді:

МN=KL=6(см); KM=NL=6*6=36(см).

Відповідь: 6 см, 6 см, 36 см, 36 см.

Приложения:

mrmilkalii: благодарю, все понятно

mrmilkalii: чт7й

mrmilkalii: Что-то не нравится?

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