Предмет: Геометрия, автор: MEKYEY

Помогите срочно! Решите, ПРОШУ! Даю максимальное кол-во баллов!

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Автор ответа: rpihterev

1

<4 = 40 градусов так как <3+<4 = 180 <4 + 140 = 180 <4 = 180-140=40

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