Предмет: Геометрия, автор: Ysiki

В четырехугольнике АВСD известно, что угол А:угол В:угол С:угол D = 6:7:8:9 . Найдите угол А, угол В, угол С, угол D

Ответы

Автор ответа: BOJlK2014

Решение:
По условию задачи получаем уравнение:
6y+7y+8y+9y=360°
30y=360°
y=12°
Итак углы четырехугольника равны:
72°; 84°; 96°; 108°

Автор ответа: BOJlK2014

Поставь , пожалуйста , мой ответ лучшим, тебе ничего, а мне +3б , заранее спасибо

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