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Help pls, fast to, thx
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Help pls, fast to, thx

Help pls, fast to, thx-example-1
User Stephen Hallgren
by
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1 Answer

9 votes

Answer:

∠b = 64°

Explanation:

We know that a complete rotation is 360°, so:

∠b + 57° + 239° = 360°

∠b = 360° - 57° - 239°

∠b = 64°

User Bartu
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