Предмет: Математика, автор: aleinovanelkay

Разность величин двух внутренних односторонних углов ( при пересечении двух параллельных прямых секущех ) в 4 раза меньше их суммы . Найдите величину большого угла.

Ответы

Автор ответа: Аноним

(а+в)/ (а-в)=4 Сумма внутренних односторонних углов равна 180 градусов
а+в=180

180/(180-в-в)=4
180=4(180-2в)
45=180-2в
45-180=-2в
-135=-2в
в=67,5 градусов
а=180-67,5=112,5 градусов величина большего угла

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