Предмет: Геометрия, автор: julija1980a

Чи можна скласти трикутника із трьох планок, довжина яких, відповідно дорівнює 20см,15см і 42см?
1)Так
2)Ні​

Ответы

Автор ответа: annanayda1310
6

Ответ:

Ні

Объяснение:

20см<15см+42см це істинна нерівність

15см<20см+42см це істинна нерівність

42см<20см+15см це не істинна нерівність

якщо всі нерівності істинні то трикутник можна побудувати, а якщо ні то не можна.

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