Предмет: Геометрия, автор: Kvoronow

2 угла трапеции 72 градуса и 102 градуса. найди остальные углы

Ответы

Автор ответа: Lenka111
0

угол В=72  град. 

угол А = 102 град.

угол С = 108 град

угол Д = 78 град....но я не уверена так как не спец в геометрии(((... 

Автор ответа: BogdashkaRu
0

Сумма противоположных углов трапеции равна 180 градусов, тогда 
Угол при верхнем основании равен: 180 - 72 = 108 (градусов), при нижнем: 180 - 102 = 78 (градусов)
Ответ: Угол №1(тупой) = 108 градусов, угол №2(острый) = 78 градусов.

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