Предмет: Геометрия, автор: vityatrushin0

Найдите большой угол равнобедренной трапеции ABCD если диагональ АС образует с основанием AD и боковой стороной AB углы, равные 47° и 15° соответственно. Ответ дайте в градусах

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Автор ответа: buba3

112 градусов получится

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Автор ответа: СhАrLoTtE

сумма углов ВАС и САD равна 47+15=62 градуса

Следовательно угол ВАD трапеции АВСD равен 62 градуса

Так как основания трапеции параллельны, то сумма углов АВС и ВАD = 180 градусов ( сумма внутренних односторонних углов ).

Следовательно угол ВАС будет равен 180-62=118 градусов

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