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anonymous

  • one year ago

@dumbcow

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  1. anonymous
    • one year ago
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  2. dumbcow
    • one year ago
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    oh ok, same formula...but now we have to move things around because we want the angle not the arc \[arc = r* \frac{\text{\angle}}{180} \pi = (\frac{\pi r}{180}) \text{\angle}\] by multiplying by reciprocal we can get "angle" by itself \[\text{\angle} = (\frac{180}{\pi r})*arc\]

  3. dumbcow
    • one year ago
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    now try plugging in arc of 6pi, and r of 8 \[Angle = \frac{180}{8\pi}* 6\pi\]

  4. anonymous
    • one year ago
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    I get 135...

  5. dumbcow
    • one year ago
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    correct

  6. anonymous
    • one year ago
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    So it would be none of the above?

  7. dumbcow
    • one year ago
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    yep

  8. anonymous
    • one year ago
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    Thank you bunny much (: (\/) (. .) c(")(")

  9. dumbcow
    • one year ago
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    nice

  10. anonymous
    • one year ago
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    Are you good at finding the area of a circle? I've forgotten

  11. dumbcow
    • one year ago
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    yes \[Area = \pi* r^2\]

  12. anonymous
    • one year ago
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    Ok so it's giving me diameter... what's the formula then?

  13. anonymous
    • one year ago
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    @dumbcow ? :c

  14. anonymous
    • one year ago
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    Cause I tried just pi times the diameter and it wasn't right...

  15. dumbcow
    • one year ago
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    right pi * diameter will give you circumference you need to know how to convert diameter to radius ----> r = d/2 easy radius is half the diameter \[A = \pi r^2 = \pi (\frac{d}{2})^2\]

  16. anonymous
    • one year ago
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    When I fill it in my answer doesn't correlate with the answer options.

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  17. dumbcow
    • one year ago
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    oh well thats because they want area of blue part, NOT the circle :) what did you get for circle?

  18. anonymous
    • one year ago
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    176.625

  19. dumbcow
    • one year ago
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    good ok you have to subtract this from area of square

  20. anonymous
    • one year ago
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    So how do I find that?

  21. dumbcow
    • one year ago
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    find area of square with side length of 15

  22. anonymous
    • one year ago
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    Okay, I got it. Thank you c:

  23. dumbcow
    • one year ago
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    np

  24. anonymous
    • one year ago
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    Would you help me with some more math stuff? lol

  25. dumbcow
    • one year ago
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    sure but i need to get off in 15 min or so

  26. anonymous
    • one year ago
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    Okay o:

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