anonymous
  • anonymous
IS anyone up to really help me out? I got 8 questions right out of 20 and need serious help...anyone up for it?
Mathematics
schrodinger
  • schrodinger
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skullpatrol
  • skullpatrol
sure
anonymous
  • anonymous
okay my first one is In circle O, m
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phi
  • phi
R is an "inscribed angle" (it is on the circle) O is a central angle R's arc is QN O's arc is also QN for the same arc, central angles are twice as big as the inscribed angle

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phi
  • phi
You should memorize that factoid.
anonymous
  • anonymous
@phi very interesting fact.
anonymous
  • anonymous
So even if the point R moved, then it would always be twice the angle?
phi
  • phi
yes R would always be 1/2 of O, as long as R's arc stays QN
phi
  • phi
Can you figure out what m angle O is ?
anonymous
  • anonymous
so 46?
anonymous
  • anonymous
My next question is The figure consists of a tangent and a secant to the circle. A)9.2 B) 7.7 C) 14.3
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pottersheep
  • pottersheep
Maybe you should post it up as a different question. It will be more fair to your answers
pottersheep
  • pottersheep
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anonymous
  • anonymous
well that is how it was asked...sometimes changing the question can change the answers!

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