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brookieismyname

Lines CD and DE are tangent to circle A shown below If arc CE is 126°, what is the measure of ∡CDE? 126° 63° 117° 54°

  • one year ago
  • one year ago

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  1. brookieismyname
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    • one year ago
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  2. shubhamsrg
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    |dw:1338493954982:dw| can you tell me the measure of this angle?

    • one year ago
  3. brookieismyname
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    I don't know how to find it :/

    • one year ago
  4. shubhamsrg
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    this angle measure is universal.. alright,,i'll tell you,,but you have to reach the ans yourself..i'll drop hints when you require.. a tangent always makes a 90 degree angle with the radius!!

    • one year ago
  5. brookieismyname
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    Wait isn't the measure of the angle half the arc?

    • one year ago
  6. shubhamsrg
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    half the arc? which arc?? you're confusing with another property of circle.. just remember this :a tangent always makes a 90 degree angle with the radius!!

    • one year ago
  7. brookieismyname
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    I don't get how you would find the angle measure

    • one year ago
  8. shubhamsrg
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    see,,CAED is a quadilateral..you know 3 angles of it..cant you find the 4th?

    • one year ago
  9. brookieismyname
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    Would I subtract the three angles from 360?

    • one year ago
  10. shubhamsrg
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    yep.. well 2 of those are 90 degress,,(radius tangent angle),,one is 126(given the ques) just find the 4th,,thats what the ques asks you to do!

    • one year ago
  11. brookieismyname
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    So would it be 54 degrees?

    • one year ago
  12. shubhamsrg
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    bingo! ^_^

    • one year ago
  13. brookieismyname
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    Thanks so much!<3

    • one year ago
  14. shubhamsrg
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    glad to help ^_^

    • one year ago
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