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МатематикаВопрос:
15. Triangle with angles 69 and 57 degrees, find x.
Ответ:
Решение:
Сумма углов в треугольнике равна 180°. Найдем неизвестный угол:
\( x = 180° - 69° - 57° \)
\( x = 180° - 126° \)
\( x = 54° \)
Ответ: x = 54°.
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