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anonymous

  • 5 years ago

how do u find the area of part of a circle?

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  1. Owlfred
    • 5 years ago
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    Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

  2. anonymous
    • 5 years ago
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    Be specific about the part of the circle

  3. mathteacher1729
    • 5 years ago
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    http://math.about.com/library/blmeasurement.htm

  4. anonymous
    • 5 years ago
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    half of the circle and its diameter is 16

  5. anonymous
    • 5 years ago
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    1/2 pi(diameter/2)^2

  6. anonymous
    • 5 years ago
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    Find the area of the circle (pi x r x r) r = 8 as it is half a diameter so in your calcu;ator press, pi * 64 then divide by 2

  7. anonymous
    • 5 years ago
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    1/2pi*64=32pi

  8. anonymous
    • 5 years ago
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    pi is the button that looks like mini stonehenge:)

  9. anonymous
    • 5 years ago
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    what if it gives u like a pizza slice size or a quarter

  10. anonymous
    • 5 years ago
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    mean any sector of the circle?

  11. anonymous
    • 5 years ago
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    yes

  12. anonymous
    • 5 years ago
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    Well you will need to know the angle at the centre. This is then a ratio to 360 degrees which is then multiplied by pi r squared

  13. anonymous
    • 5 years ago
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    area of a sector =1/2r^2*central angle

  14. anonymous
    • 5 years ago
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    the measure of the angle is 45

  15. anonymous
    • 5 years ago
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    angle is theta (we use this for any unknown angle)/ 360 multiplied by pi r squared.

  16. anonymous
    • 5 years ago
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    45/360 * pi r*-r

  17. anonymous
    • 5 years ago
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    pi r squared that should say

  18. anonymous
    • 5 years ago
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    gian...there isnt pi in the area of sector

  19. anonymous
    • 5 years ago
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    thanks u

  20. anonymous
    • 5 years ago
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    uzma there is pi in a whole circle and a sector is a fraction part of a circle

  21. anonymous
    • 5 years ago
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    http://math.about.com/od/formulas/ss/surfaceareavol_7.htm

  22. anonymous
    • 5 years ago
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    Uz look at the formula on the page you just posted.

  23. anonymous
    • 5 years ago
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    so?

  24. anonymous
    • 5 years ago
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    the one that says degrees

  25. anonymous
    • 5 years ago
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    oh u r using that one :) i talked about the radian measure:

  26. anonymous
    • 5 years ago
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    No problem good talking to you!

  27. anonymous
    • 5 years ago
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    i ahve anpother question can u guys help me

  28. anonymous
    • 5 years ago
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    post it

  29. anonymous
    • 5 years ago
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    Softball, best to post it so all can see it on left of screen ask a question

  30. anonymous
    • 5 years ago
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    kk find the area of a rhombus with a perimeter of 40 and an angle of 60

  31. anonymous
    • 5 years ago
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    I will post a detailed jpeg for yoy.

  32. anonymous
    • 5 years ago
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    okk

  33. anonymous
    • 5 years ago
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    where is it

  34. anonymous
    • 5 years ago
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  35. anonymous
    • 5 years ago
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    Is that clear? I am assuming you have been taught this method of finding the area of a triangle

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