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bublik455
@bublik455
July 2022
1
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Решите пожалуйста
В ∠ ABC, ∠ A :∠ B :∠ C как 2 : 3 : 13. Найти градусную меру ∠ А,∠В, С
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AlexIvanovFis
A + B + C = 180
2+3+13 =18
180/18 =10
A=20
B=30
C=130
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bublik455
А как получилось 20? 30? 139?)
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Answers & Comments
2+3+13 =18
180/18 =10
A=20
B=30
C=130