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Rachel411

  • 2 years ago

For a math project,Jane creates a cake shaped like a square pyramid with sides that measure 6 inches. The slant height is 7 inches. Jane wants to ice the cake with icing that cost $0.20 per square inch. How much will it cost Jane to ice the cake? a. $8.40 b. $16.80 c. $10.80 d. $21.60 Explain. Thanks.

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  1. Rachel411
    • 2 years ago
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    @timo86m

  2. timo86m
    • 2 years ago
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    |dw:1352769793102:dw| ?

  3. Rachel411
    • 2 years ago
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    I think.

  4. timo86m
    • 2 years ago
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    http://math.about.com/od/formulas/ss/surfaceareavol_5.htm

  5. Rachel411
    • 2 years ago
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    Do you understand it?

  6. timo86m
    • 2 years ago
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    cost is 2 * b* s * .2

  7. Rachel411
    • 2 years ago
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    Will you explain?

  8. timo86m
    • 2 years ago
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    |dw:1352770021276:dw|

  9. Rachel411
    • 2 years ago
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    Yes, that is correct....from what I see on the question.

  10. Rachel411
    • 2 years ago
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    What did you get as the answer?

  11. timo86m
    • 2 years ago
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    just use the formula from this link http://math.about.com/od/formulas/ss/surfaceareavol_5.htm dont include the b^2 part since you dont ice the floor of the cake So it is 2 *7*6*.2

  12. timo86m
    • 2 years ago
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    16.8

  13. Rachel411
    • 2 years ago
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    hmm...ok.

  14. Rachel411
    • 2 years ago
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    Thank u:)

  15. Rachel411
    • 2 years ago
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    Did you get my other messages?

  16. Rachel411
    • 2 years ago
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    Tnx for ur help. @timo86m

  17. Rachel411
    • 2 years ago
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    tnx for the medal:)

  18. Rachel411
    • 2 years ago
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    What?

  19. Rachel411
    • 2 years ago
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    Listen, grg,but Ill message u tmrw... Im probably gonna have a lot more math to do...ok?

  20. Rachel411
    • 2 years ago
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    tnq uuu:)

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