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anonymous

  • one year ago

line AC is the diameter. Calculate the area of the sector created by angle ADB 31.19 26.5 17.8 22.34

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  1. anonymous
    • one year ago
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    @jim_thompson5910

  2. jim_thompson5910
    • one year ago
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    what is angle ADB equal to?

  3. anonymous
    • one year ago
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    idk its a third of the circle or 20 degrees ???

  4. jim_thompson5910
    • one year ago
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    x = measure of angle ADB x+20 = 180 x = ???

  5. anonymous
    • one year ago
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    160

  6. jim_thompson5910
    • one year ago
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    yep we will use this later

  7. jim_thompson5910
    • one year ago
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    what is the area of the entire circle?

  8. anonymous
    • one year ago
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    idk

  9. jim_thompson5910
    • one year ago
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    use the formula A = pi*r^2

  10. jim_thompson5910
    • one year ago
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    pi = 3.14 approximately r = radius = half of the diameter

  11. anonymous
    • one year ago
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    50.27

  12. jim_thompson5910
    • one year ago
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    correct

  13. jim_thompson5910
    • one year ago
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    now you multiply that by 160/360 to get the pie shaped sector formed by ADB

  14. anonymous
    • one year ago
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    22.34?

  15. jim_thompson5910
    • one year ago
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    and that is the approximate answer

  16. anonymous
    • one year ago
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    thanks!!!

  17. jim_thompson5910
    • one year ago
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    yw

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