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anonymous

  • 5 years ago

For a triangle with side lengths 1.5 feet, 2 feet and 3 feet, the area of the triangle is:

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  1. anonymous
    • 5 years ago
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    Hi

  2. anonymous
    • 5 years ago
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    Are you Here Radar?

  3. radar
    • 5 years ago
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    Use the formula for calculating area of a triangle when the three sides are known.. First compute s. s is the value of the perimeter divided by 2. In this problem the sum of the sides are: 1.5+2+3=6.5 ft. So s=3.25

  4. anonymous
    • 5 years ago
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    Thanks

  5. radar
    • 5 years ago
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    Yes I am here, are we having fun yet?

  6. anonymous
    • 5 years ago
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    No, geometry is hard, I have this question on a quiz, it does not list this answer.

  7. radar
    • 5 years ago
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    Here is the formula:\[A=\sqrt{s(s-a)(s-b)(s-c)}\] Where a, b, c are the sides

  8. anonymous
    • 5 years ago
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    Are you sure, that is the answer?

  9. radar
    • 5 years ago
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    That is the formula. plug in values s=3.25, a=1.5, b=2, and c=3.

  10. anonymous
    • 5 years ago
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    ok, maybe it is none of them, since I do not show your answer.

  11. radar
    • 5 years ago
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    \[\sqrt{3.25(3.25-1.5)(3.25-2)(3.25-3)}\]

  12. anonymous
    • 5 years ago
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    I am having a hard time with this open book test lol, they are the worst

  13. radar
    • 5 years ago
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    \[\sqrt{3.25(1.75)(1.25)(0.25)}\]

  14. radar
    • 5 years ago
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    using my calculator i get:\[\sqrt{1.77734375}\]

  15. anonymous
    • 5 years ago
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    ok

  16. radar
    • 5 years ago
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    that would be: 1.33317 sq ft

  17. radar
    • 5 years ago
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    Better double check my figures cdunn

  18. anonymous
    • 5 years ago
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    lol

  19. anonymous
    • 5 years ago
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    I think you are right

  20. anonymous
    • 5 years ago
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    I have 19 replies, how can I see the rest of them?

  21. radar
    • 5 years ago
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    are you looking at the open study web page, I am and I see all 20 replies

  22. anonymous
    • 5 years ago
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    I cannot see them

  23. radar
    • 5 years ago
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    maybe if you refresh your browser

  24. anonymous
    • 5 years ago
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    strange, I cannot see them, but their answer is the same as your answer?

  25. radar
    • 5 years ago
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    ok good luck with it. I got that formula for area from a very old text. bye

  26. anonymous
    • 5 years ago
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    thanks

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