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