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ErinWeeks Group Title

Find mBAC in circle O. (The figure is not drawn to scale.)

  • one year ago
  • one year ago

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  1. ErinWeeks Group Title
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    • one year ago
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  2. ErinWeeks Group Title
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    A. 170 B. 95 C. 47.5 D. 42.5

    • one year ago
  3. arandomguy Group Title
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    do u go to connexus

    • one year ago
  4. ErinWeeks Group Title
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    no i go to James Madison

    • one year ago
  5. arandomguy Group Title
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    i was on the unit 6 test and was wondering if someone could help me with some problems

    • one year ago
  6. ErinWeeks Group Title
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    im on exam 6 test to

    • one year ago
  7. SmoothMath Group Title
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    Oh, hey. Real simple. If you can figure out the measure of the arc that the inscribed angle subtends, then the angle will simply be: \[\Large \text{inscribed angle} = \frac{\text{measure of arc subtended}}{2}\]

    • one year ago
  8. ErinWeeks Group Title
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    i dont know how to figure that out the arc -_-

    • one year ago
  9. SmoothMath Group Title
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    |dw:1357873734885:dw|

    • one year ago
  10. ErinWeeks Group Title
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    so it would be 85 .. then what do you do? can you show me

    • one year ago
  11. SmoothMath Group Title
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    naw gurl. it aint even.

    • one year ago
  12. ErinWeeks Group Title
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    im confused ...

    • one year ago
  13. SmoothMath Group Title
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    I can tell.

    • one year ago
  14. ErinWeeks Group Title
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    Helppp lol

    • one year ago
  15. ErinWeeks Group Title
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    would it be 90? 95? I dont know lol

    • one year ago
  16. SmoothMath Group Title
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    I'm sorry. The whole guessing business just kills me. Stop guessing, stop begging for answers, and show some effort.

    • one year ago
  17. ErinWeeks Group Title
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    i am i dont know how to do this, Im trying ..

    • one year ago
  18. SmoothMath Group Title
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    All of the facts you need: Two angles that form a straight line must add up to 180 degrees. An arc has the same measure as a central angle that includes it. An inscribed angle is half of the measure of the arc it includes.

    • one year ago
  19. mathmate Group Title
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    |dw:1357910861134:dw| @ErinWeeks We should never guess in math, or else you will always have 25% or thereabouts for your grades! :( The above diagram shows the relation between the angles subtended by the same chord AC, at the circumference B or at the centre O. If you join OB, then OA,OB,OC are all equal to the radius. Thus triangl OAB is isosceles, therefore mBAO=mABO. Similarly mBCO=mCBO. But mABO+mCBO=mAOC (exterior angles), which means finally \( mAOC=2 * mABC.\) Hope this helps. Note: this is similar to the question I answered previously. Hope that this more detailed explanation helps you work on other problems. Please, do NOT guess your answers if you want a good grade. Understanding is faster than guessing.

    • one year ago
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