Предмет: Математика, автор: alsukhertek06

1)найдите наибольший из углов остроугольного равнобедренного треугольника , один из углов которого равен 30’. Ответ дайте в градусах .
2)Найдите наибольший из углов тупоугольного равнобедренного треугольника, один из углов которого равен 30’. Ответ дайте в градусах

Ответы

Автор ответа: markijankon

Відповідь:

Если равнобедренный треугольник остроугольный, и один из его углов 30, то этот угол между ребер. Тогда угол при основании будет равен 180-30=120, 120 : 2 = 60

Наибольших углов бцудет два, и оба они при основании, и равны они по 60*

Если равнобедренный треугольник тупоугольный, и один из его углов равен 30*, то этот угол находится при основании. Что б ы найти наибольший угол : 180 - (30*2) = 180 - 60 = 120*

Наибольший угол расположен между ребрами и равен 120*

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