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anonymous

  • one year ago

Alex drew a circle with right triangle PRQ inscribed in it, as shown below: The figure shows a circle with points P, Q, and R on it forming an inscribed triangle. Side PQ is a chord through the center and angle R is a right angle. Arc QR measures 80 degrees. If the measure of arc QR is 80°, what is the measure of angle PQR? 50° 40° 80° 70°

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  1. anonymous
    • one year ago
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  2. arindameducationusc
    • one year ago
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    are you there?

  3. anonymous
    • one year ago
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    yeah

  4. arindameducationusc
    • one year ago
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    see if Qr=80 then, QPR=80/2

  5. arindameducationusc
    • one year ago
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    angle subtending arc= arc/2 (formula)

  6. anonymous
    • one year ago
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    oh alright

  7. anonymous
    • one year ago
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    so PQR=40

  8. arindameducationusc
    • one year ago
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    now, using angles of triangles. total angles (when added) =180 what we have here is 90+40+x=180

  9. arindameducationusc
    • one year ago
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    no its not 40

  10. arindameducationusc
    • one year ago
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    90+40(which we took out+x(which we have to find)=180 now solve for x, what do you get?

  11. anonymous
    • one year ago
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    50

  12. arindameducationusc
    • one year ago
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    Good! Thatz your answer

  13. anonymous
    • one year ago
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    ok thank you :)

  14. arindameducationusc
    • one year ago
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    No problem,

  15. anonymous
    • one year ago
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    can you help me with one more?

  16. anonymous
    • one year ago
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    Which of the following is a step in constructing a circle inscribed in a triangle? Use a compass to locate the intersection of the midpoint of each side. Use the perpendicular bisectors to find the center of the circle. Use a compass to locate the intersection of the altitude of each side. Use the angle bisectors to find the center of the circle.

  17. arindameducationusc
    • one year ago
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    I will try

  18. arindameducationusc
    • one year ago
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    hmmm.....

  19. anonymous
    • one year ago
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    is it the second one?

  20. arindameducationusc
    • one year ago
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    nopes. I dont think that. I think its D, but I am not sure.

  21. anonymous
    • one year ago
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    ok, i'll just google it to be sure lol

  22. arindameducationusc
    • one year ago
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    okay....

  23. arindameducationusc
    • one year ago
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    If you liked my response, dont forget to medal @ItzYaBoiGio

  24. anonymous
    • one year ago
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    alright

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