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stupidinmath

  • 2 years ago

Help me continue. topic: circumference, polygons..

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  1. stupidinmath
    • 2 years ago
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    Find the circumference of the circle inscribed in a regular hexagon with sides 18cm long.

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  2. stupidinmath
    • 2 years ago
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    I should find the radius... how? |dw:1389280808018:dw|

  3. stupidinmath
    • 2 years ago
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    ugh. i dont know. help

  4. SolomonZelman
    • 2 years ago
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    |dw:1389281105829:dw|

  5. SolomonZelman
    • 2 years ago
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    the proportions of any 30-6090 degree triangle, are |dw:1389281244706:dw|

  6. SolomonZelman
    • 2 years ago
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    hypotenuse is twice the smaller leg, and half of the hypotenuse is the radius. and then use \[C=2πr~~~~~~~~~or~~~~~~~~~~~~~~C=πd\] (Because d=2r )

  7. stupidinmath
    • 2 years ago
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    oh, thank you soo soo much! :)

  8. SolomonZelman
    • 2 years ago
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    Anytime, also if you ever see |dw:1389281509527:dw| for 45 45 90 degree triangle... you welcome!

  9. stupidinmath
    • 2 years ago
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    will remember that. thanks again :))

  10. SolomonZelman
    • 2 years ago
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    Tell me what you et just in case, to make sure you are correct.

  11. SolomonZelman
    • 2 years ago
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    I meant get, not et.

  12. stupidinmath
    • 2 years ago
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    I got 113.10 approximately :) did I get it right? @SolomonZelman

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