anonymous
  • anonymous
Given: Circle O, CD is diameter, chords: AB ||CD. Arc AB = 68°, Find Arc CA
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
anonymous
  • anonymous
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anonymous
  • anonymous
|dw:1450378054925:dw|

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anonymous
  • anonymous
I see i see
anonymous
  • anonymous
would it not be 180 + 68?
wolf1728
  • wolf1728
No - you are calculating CA 180 = CA + 68 + BD CA = 180 -68 -BD
wolf1728
  • wolf1728
CA =BD so CA + CA = 180 -68 2* CA = 112 CA = ?
anonymous
  • anonymous
thank you
wolf1728
  • wolf1728
u r welcome
anonymous
  • anonymous
Can anyone help me with number 5 in the PDF?
anonymous
  • anonymous
It is the last one
wolf1728
  • wolf1728
It would be VERY similar to the one we just did. Except AB = 74 degrees.
wolf1728
  • wolf1728
CA + CA = 180 -74 2* CA = 106 CA = ?
anonymous
  • anonymous
So 106 divided by 2?
wolf1728
  • wolf1728
Yes
anonymous
  • anonymous
Thanks for all your help!
wolf1728
  • wolf1728
u r welcome

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