Предмет: Геометрия, автор: m8217144

8 У паралелограмі ABCD задано координати вершин А(5; 3) i B(-4;1), а також точки перетину діагоналей 0(0;-3). Знайдіть: a) координати вершин С i D; б) периметр паралелограма ABCD. Вiдповідь:​

Ответы

Автор ответа: anastasisasmihalcic
0

Ответ:

1. координаты вершин C і D:

C: (3; 1)

D: (1; 1)

2. Периметр паралелограма ABCD:

Периметр паралелограма дорівнюєSum \((BC + AB) + (DA + AC) + (CB + BD) + (CA + DB)\] = 4 |AB| + | BC | + | CA | + 4 | CD | = 4 (5) + 6 + 6 + 4 (1) = 30.

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