amerson647
amerson647 amerson647
  • 24-05-2018
  • Mathematics
contestada

How do you find arc ab

How do you find arc ab class=

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sqdancefan
sqdancefan sqdancefan
  • 27-05-2018
Use trigonometry to find the angle between the segments 3 and 6.
  ∠XOB = arccos(3/6) = 60°

The measure of arc AB is double that angle, since the figure is symmetrical about the line containing the segment of length 3.

m(arc AB) = 2·60° = 120°
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