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elizabethann509 Group Title

I have to calculate the area of the sector created by ADB. http://curriculum.kcdistancelearning.com/courses/GEOMx-HS-WA10/b/assessments/C-CirclesExam/Geometry_7_Exam_102q3.gif I know the area of the circle, which is 254.34, do I need that to solve this? If so, how do I do that?

  • 2 years ago
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  1. zepp Group Title
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    What's the measurement of the angle ADB?.

    • 2 years ago
  2. elizabethann509 Group Title
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    I don't know. It doesn't tell me. I included the picture in my question.

    • 2 years ago
  3. amistre64 Group Title
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    it does tell you, you just have to be able to decipher it

    • 2 years ago
  4. amistre64 Group Title
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    how many degrees are in a straight line?

    • 2 years ago
  5. amistre64 Group Title
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    or, since you know the total area; divide it in half and then take off that 20 degree part; amounts ot the same thing

    • 2 years ago
  6. mathrules Group Title
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    how many degrees are in a circle then divide my 2

    • 2 years ago
  7. zepp Group Title
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    360 - Angle ACB (Which is 180 + 20) = 160 So for 360 degrees, area is 254.34 for 160 degrees in the same circle, area is..? Set up a proportion, then solve it :)

    • 2 years ago
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