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anonymous

  • one year ago

FIND THE LENGTH OF THE RADIUS, CIRCUMFERENCE, AND THE AREA OF THE CIRCLE.USE 3:14 FOR pi

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  1. DanJS
    • one year ago
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    what are you given for a quantity

  2. anonymous
    • one year ago
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    |dw:1436492233225:dw|

  3. DanJS
    • one year ago
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    diamerter is 4.9 cm radius is from center to the edge, half of that.. radius =4.9/2 cm

  4. anonymous
    • one year ago
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    2.45

  5. DanJS
    • one year ago
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    now calculate \[C = 2*\pi*r\] \[A = \pi*r^2\] with those values approx

  6. anonymous
    • one year ago
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    huh

  7. DanJS
    • one year ago
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    use \[\pi~\approx~3.14\] r=2.45 and calculate C-circumference and A- Area for the circle

  8. anonymous
    • one year ago
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    ok

  9. anonymous
    • one year ago
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    im so lost someone help

  10. DanJS
    • one year ago
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    Circumference of a circle is the same as 2 times pi(3.14) times the radius C = 2*pi*r fill in the numbers and calculate

  11. anonymous
    • one year ago
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    2*3.14*2.45=15.386 does this = the circumference

  12. DanJS
    • one year ago
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    yes , i would keep 2 decimals for sig figures on it 26.39

  13. DanJS
    • one year ago
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    15.39

  14. anonymous
    • one year ago
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    area would = 3.14*2.45^2=18.84785

  15. anonymous
    • one year ago
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    what 26.39 for

  16. DanJS
    • one year ago
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    mistype... yeah looks good

  17. DanJS
    • one year ago
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    just remember the way to calculate those numbers, and what the radius and diameter are for the circle..

  18. anonymous
    • one year ago
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    ok thank you

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