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Alexandrovna
@Alexandrovna
October 2021
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Найдите площадь треугольника, если две его стороны равны 8 и 9 см, а кут между ними 30 градусов.
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Toroge
S=0,5a•b•sin30=0,5•8•9•0,5=18см^2
5 votes
Thanks 5
nemesis5
S = 1/2 ab·sin30= 1/2·8·9·1/2=18
4 votes
Thanks 5
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