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nikki156789

  • 4 years ago

26. Calculate the perimeter of triangleDEF �������� a. 39.28 b. 40.32 c. 45.82 d. 72

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  1. phaizzpham
    • 4 years ago
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    is there like an image you could draw out?, it would make it simpler if there is an image

  2. nikki156789
    • 4 years ago
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    |dw:1332541848602:dw|

  3. nikki156789
    • 4 years ago
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    what does the degree?

  4. nikki156789
    • 4 years ago
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    ok?

  5. nikki156789
    • 4 years ago
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    myko that comes out to not an option

  6. nikki156789
    • 4 years ago
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    it comes out to 42

  7. phaizzpham
    • 4 years ago
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    this one is a tricky one let me try again

  8. myko
    • 4 years ago
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    |dw:1332542529410:dw| what this means?

  9. phaizzpham
    • 4 years ago
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    yeah that is throwing us off

  10. nikki156789
    • 4 years ago
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    idk which is why i dont understand it

  11. myko
    • 4 years ago
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    actualy, my bad, there is no solution i guess with the info you have

  12. phaizzpham
    • 4 years ago
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    r u positive that it is a t?

  13. nikki156789
    • 4 years ago
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    no its like an angle thing with a line through it.

  14. phaizzpham
    • 4 years ago
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    ahh thats means perpendicular i would think

  15. myko
    • 4 years ago
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    maybe it means that this top angle is half of the bottom ones?

  16. nikki156789
    • 4 years ago
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    idk which is why im having trouble doing this problem

  17. phaizzpham
    • 4 years ago
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    ive done that and i figured out the height which is six, but idk how to apply it to figure out the parameter

  18. SUROJ
    • 4 years ago
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    |dw:1332543779552:dw|

  19. phaizzpham
    • 4 years ago
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    i think the answer is 40.32

  20. SUROJ
    • 4 years ago
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    any reason behind that?

  21. nikki156789
    • 4 years ago
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    SUROJ be nice

  22. nikki156789
    • 4 years ago
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    how'd you get 40.32?

  23. phaizzpham
    • 4 years ago
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    |dw:1332543858044:dw| well i tried to find the height which is 12 using the h=root3*s/2 formula, then i cut the triangle in half, then applied the A^2+B^2=C^2 to find one of the sides which is 13.89 then added all of them together which is 2*13.89+14 which is 41.78 so it could be 40.32 lol

  24. nikki156789
    • 4 years ago
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    oh ok:)

  25. phaizzpham
    • 4 years ago
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    i could be wrong tho D:

  26. nikki156789
    • 4 years ago
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    :/

  27. SUROJ
    • 4 years ago
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    is that equilateral triangle?

  28. phaizzpham
    • 4 years ago
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    yeah it should be

  29. nikki156789
    • 4 years ago
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    i dont think so

  30. nikki156789
    • 4 years ago
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    no its not cuz only two sides are the same

  31. phaizzpham
    • 4 years ago
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    or an isolyze triangle ?

  32. nikki156789
    • 4 years ago
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    its an isosceles triangle

  33. SUROJ
    • 4 years ago
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    yes

  34. phaizzpham
    • 4 years ago
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    okay let me try again lol

  35. nikki156789
    • 4 years ago
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    ok

  36. nikki156789
    • 4 years ago
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    |dw:1332545361479:dw|

  37. SUROJ
    • 4 years ago
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    72

  38. nikki156789
    • 4 years ago
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    thats the 2nd triangle

  39. nikki156789
    • 4 years ago
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    so the perimeter of def is 72?

  40. SUROJ
    • 4 years ago
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    wait that is 42.8

  41. SUROJ
    • 4 years ago
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    yea the perimeter

  42. SUROJ
    • 4 years ago
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    sorry 45.8

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