carlosmartinez51 carlosmartinez51
  • 27-05-2018
  • Mathematics
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Somebody helppppp me pleassse

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sqdancefan
sqdancefan sqdancefan
  • 27-05-2018
BC = 360° - 90° - 146°

BC = 124°


_____
The little square at the center of the circle means that angle is a right angle, 90°. The sum of all central angles is 360°. Arcs are measured by their central angle.
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