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anonymous

  • one year ago

The image below is a triangle drawn inside a circle with center O:

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    Which of the following expressions shows the area, in square inches, of the circle? (π = 3.14) 3 ⋅ 3.14 ⋅ 22 3.14 ⋅ 32 3.14 ⋅ 22 3.14 ⋅ 3

  3. ♪Chibiterasu
    • one year ago
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    Well we know the diameter.

  4. ♪Chibiterasu
    • one year ago
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    And we need the radius.

  5. ♪Chibiterasu
    • one year ago
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    Do you know what the radius is?

  6. Plasmataco
    • one year ago
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    The diameter is 6 so the radius is 3 the formula for the area of a circle is 2radius squared themes pi so three squared times pi is nine pi

  7. anonymous
    • one year ago
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    is the radius 4 inches?

  8. anonymous
    • one year ago
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    or 3 inches?

  9. ♪Chibiterasu
    • one year ago
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    The radius is 3 because the line going through the center is 6 inches.

  10. Plasmataco
    • one year ago
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    Do u see how the line with the length of six passes through the center?

  11. Plasmataco
    • one year ago
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    Divide it by two because the radius is half the diameter

  12. Plasmataco
    • one year ago
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    I'm not sure why it isn't one of the options

  13. anonymous
    • one year ago
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    oh OK so its none of the answer choices :/ @Plasmataco

  14. Plasmataco
    • one year ago
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    It should be 9 times 3.14

  15. anonymous
    • one year ago
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    i'll ask for help ;) @jim_thompson5910

  16. Plasmataco
    • one year ago
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    Ok. Don't use me as a source too much. @jim_thompson5910 is probably a better source because I'm Only 13

  17. anonymous
    • one year ago
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    same lol

  18. Plasmataco
    • one year ago
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    :3

  19. anonymous
    • one year ago
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    this is a review and im bad at math :b

  20. jim_thompson5910
    • one year ago
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    I'm guessing choice B is supposed to say \[\Large 3.14 \cdot 3^2\] ? or no?

  21. anonymous
    • one year ago
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    yup

  22. anonymous
    • one year ago
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    so its b? @jim_thompson5910

  23. Plasmataco
    • one year ago
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    Oh yeahhhhh. It is the highest possibility

  24. anonymous
    • one year ago
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    OK thanks! :)

  25. jim_thompson5910
    • one year ago
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    yeah it's B since you use the area of a circle formula \[\Large A = \pi*r^2\]

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