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Smiley75

Savion and his father pitched a tent that has the shape of a triangular prism. The tent is covered in fabric on all sides, including both ends, of the prism. The vertical height of the tent is 9 feet. What is the surface area, in square feet, of the tent?

  • 3 years ago
  • 3 years ago

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  1. LeopoldBr
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    What is the side value of the triangle? The triangular base is regular?

    • 3 years ago
  2. Smiley75
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    the side value is 15 feet and the base is 24 feet

    • 3 years ago
  3. Smiley75
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    ok im gonna send a drawing..is not good but i tried

    • 3 years ago
  4. LeopoldBr
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    ok.. im waiting...

    • 3 years ago
  5. Smiley75
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    • 3 years ago
  6. LeopoldBr
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    you can see if we divide the triangle by 2 we'll have 2pitagoric triangles?

    • 3 years ago
  7. Smiley75
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    i dont get it

    • 3 years ago
  8. LeopoldBr
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    look

    • 3 years ago
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  9. amistre64
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    15(30)(2) + 24(30) ?? if I read the picture right.. 30(30 + 24) 30(54) = 1620 ft^2

    • 3 years ago
  10. amistre64
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    are the front triangle and rear triangle covered as well?

    • 3 years ago
  11. amistre64
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    herons formula; s= perimeter/2 sqrt(s(s-15)(s-15)(s-24))

    • 3 years ago
  12. Smiley75
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    to amistre64: yes

    • 3 years ago
  13. LeopoldBr
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    (12*9)*2 triangles + (30*15)*2 sides +24*30 ground =1386

    • 3 years ago
  14. amistre64
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    or since the height is 9; 9(24) will give both areas...

    • 3 years ago
  15. Smiley75
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    oh ok i think i get it now..thank you both

    • 3 years ago
  16. LeopoldBr
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    you're welcome

    • 3 years ago
  17. Smiley75
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    To leopoldBr: oh wait but in the multiple choice it says 1,836 instead of 1386 square feet

    • 3 years ago
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