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spayn [35]
3 years ago
5

Need help with this problem

Mathematics
1 answer:
Lana71 [14]3 years ago
3 0

Answer:

39°

Step-by-step explanation:

<u>Internal angles of the triangle are: </u>

  • x, 60° and (180° -99°)

<u>Angle x is:</u>

  • x = 180° - (60° + 81°)
  • x = 180° - 141°
  • x = 39°
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