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sologubnastia
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August 2022
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Tseluyko58 буду благодарна:33
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tseluyko58
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А4 2)sin(180°-α)=sinα
A5. 12√2/sin135°=2R, R=12
Часть 2
1)∠С=180-70-15=95°
2) AC/sin70°=6/sin95°, AC=6*sin70°/sin95°
3)S(ABC)=1/2AB*AC*sin15°=18*sin70°*sin15°/sin95°
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sologubnastia
БОЖЕЧКИКОШЕЧКИ,СПАСИБО ВАМ БОЛЬШОЕ ВЫ МЕНЯ СПАСЛИ:333
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Answers & Comments
Verified answer
А4 2)sin(180°-α)=sinαA5. 12√2/sin135°=2R, R=12
Часть 2
1)∠С=180-70-15=95°
2) AC/sin70°=6/sin95°, AC=6*sin70°/sin95°
3)S(ABC)=1/2AB*AC*sin15°=18*sin70°*sin15°/sin95°