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Sveta_85 [38]
4 years ago
14

HELP ME PLESE ,3 I NEED THIS

Mathematics
1 answer:
Trava [24]4 years ago
5 0

Answer:

270°

Step-by-step explanation:

m\widehat{BC} = 360\degree - (146\degree + 90\degree) \\m\widehat{BC} = 360\degree -236\degree \\m\widehat{BC} = 124\degree \\\\m\widehat{ABC} =m\widehat {AB} + m\widehat {BC} \\m\widehat{ABC} =146\degree + 124\degree \\\huge \red {\boxed {m\widehat{ABC} =270\degree}} \\

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Step-by-step explanation:

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