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Kay [80]
3 years ago
6

Help pls, fast to, thx

Mathematics
1 answer:
vivado [14]3 years ago
7 0

Answer:

∠b = 64°

Step-by-step explanation:

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

∠b + 57° + 239° = 360°

∠b = 360° - 57° - 239°

∠b = 64°

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pickupchik [31]
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We know that

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