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sirena94 Group Title

if your given the radius 6 meters and area of sector of circle 8 squared meters how do you find the central angle?

  • one year ago
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  1. Lethal Group Title
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    sector area is a/360 * pi r^2

    • one year ago
  2. MarcLeclair Group Title
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    the formula is central angle/2pi = A /pir^2.

    • one year ago
  3. MarcLeclair Group Title
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    so what he said above me.

    • one year ago
  4. Algebraic! Group Title
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    you're *

    • one year ago
  5. Lethal Group Title
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    8 = a/360 36pi 113a = 8 a = 14.125/360 so is the measure 14.125 degrees. i've no idea. lol this is weird.

    • one year ago
  6. Lethal Group Title
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    a/2pi = 8/36pi a/pi = 4/36pi 12.56 = 113a a = 9 according to marcs formula so yeah :)

    • one year ago
  7. MarcLeclair Group Title
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    say thanks to my cal teacher haha just came from the unit circle :) but your definition looked right you were just mising the area of the circle i think?

    • one year ago
  8. Lethal Group Title
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    Yep, well i'm only in geometry and we did stuff like this. but it's different working backwards.

    • one year ago
  9. MarcLeclair Group Title
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    Id say more here but this isnt a conversation area :) haha

    • one year ago
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