Предмет: Геометрия, автор: moxito2014vesta

в треугольнике АВС угол А в 2 раза больше угла Б и в 3 раза меньше угла С.найдите его градусную меру

Ответы

Автор ответа: recordion
0
суммы углов треугольника равна 180 градусов, составим уравнение x+2x+3x=180
6x=180
x=30 первый угол
х=60 второй
х=90 третий

Автор ответа: personalhelper
0
Пусть угол А=х,тогда угол В=1/2х, угол С=3х
х+1/2х+3х=180
4 1/2х=180
9/2х=180
х=40
Ответ: 40 градусов
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