briannaml briannaml
  • 30-04-2018
  • Mathematics
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PLZ HELP ASAP CIRCLES

PLZ HELP ASAP CIRCLES class=

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carlosego
carlosego carlosego
  • 30-04-2018
Because the AC line is tangent to the circle then we have to:
 angle C = 90 degrees.
 Then, the sum of the angles of a triangle is 180 degrees.
 Therefore, we have:
 23 + 90 + O = 180
 Clearing the angle O we have:
 O = 180-90-23
 O = 67 degrees
 Answer:
 the angle O is given by:
 O = 67 degrees
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