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SNIIX18

  • one year ago

BC is -- feet long. (A)14 (B)25 (C)7 SQUARE RT OF 3 (D)14 SQUARE RT OF 3

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  1. SNIIX18
    • one year ago
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    |dw:1373479893152:dw|

  2. RadEn
    • one year ago
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    |dw:1373480181228:dw| the proportion of sides infront of 30-60-90 right triangle is 1 : sqrt(3) : 2. let the length of BC is x, so we have an equation : 7/x = 1/sqrt(3) solve for x

  3. RadEn
    • one year ago
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    hint : use cross multiplication

  4. timo86m
    • one year ago
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    it's a 30 60 90 triangle use the proportions

  5. SNIIX18
    • one year ago
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    What proportions

  6. RadEn
    • one year ago
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    like i said before, can you solve for x 7/x = 1/sqrt(3)

  7. SNIIX18
    • one year ago
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    yes i can :) sorry i didnt understand you

  8. RadEn
    • one year ago
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    so, what's your answer ?

  9. SNIIX18
    • one year ago
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    i got c

  10. RadEn
    • one year ago
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    clear :)

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