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2192
(1/2)·34²·sin150=289
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2194
Площадь равна половине произведения сторон ни синус угла между ними:
S=1/2*44*8*sin30=176*sin30=176*1/2=88.
Ответ:88
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Автор:
friendo - 5 лет назад
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