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Smiley75

  • 3 years ago

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?

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  1. LeopoldBr
    • 3 years ago
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    What is the side value of the triangle? The triangular base is regular?

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

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

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

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

  7. Smiley75
    • 3 years ago
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    i dont get it

  8. LeopoldBr
    • 3 years ago
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    look

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

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

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

  12. Smiley75
    • 3 years ago
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    to amistre64: yes

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

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

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

  16. LeopoldBr
    • 3 years ago
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    you're welcome

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

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