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anonymous

  • one year ago

Classify the triangle by its angles based on the side lengths 4.2, 6.4, and 7.6

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  1. anonymous
    • one year ago
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    Acute Right Scalene Obtuse

  2. anonymous
    • one year ago
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    scalen since the sides are not equal and we dont know the angles to determine if it were obtuse or acute

  3. anonymous
    • one year ago
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    Let "c" be the longest side on each set of three numbers. If c^2 = a^2+b^2, the triangle is right If c^2 > a^2 + b^2, the triangle is obtuse If c^2 < a^2 + b^2, the triangle is acute.

  4. anonymous
    • one year ago
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    @nincompoop

  5. anonymous
    • one year ago
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    So what is the longest side?

  6. anonymous
    • one year ago
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    It's 7.6, right?

  7. anonymous
    • one year ago
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    Yeah

  8. anonymous
    • one year ago
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    What is 4.2^2?

  9. anonymous
    • one year ago
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    What is 6.4^2?

  10. anonymous
    • one year ago
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    What is 7.6^2?

  11. anonymous
    • one year ago
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    my bad i read the question wrong lol

  12. anonymous
    • one year ago
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    17.6, 40.9, and 57.7

  13. anonymous
    • one year ago
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    It's good haha

  14. anonymous
    • one year ago
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    a=4.2^2=17.64 b=6.4^2=40.96 c=7.6^2=57.76 Add A and B.

  15. anonymous
    • one year ago
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    After you find the sum of A and B, compare it to C.

  16. anonymous
    • one year ago
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    58.6

  17. anonymous
    • one year ago
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    Is 58.6 equal to C, which is 57.76?

  18. anonymous
    • one year ago
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    No

  19. anonymous
    • one year ago
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    Then what is it? Is is more than C or less than C?

  20. anonymous
    • one year ago
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    wouldnt u use sohcahtoa

  21. anonymous
    • one year ago
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    to find the angles

  22. anonymous
    • one year ago
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    Just what you said @joquez14 , you only use sohcahtoa to find the angles. Look up the question again. What is the given?

  23. anonymous
    • one year ago
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    Side lengths, right? So you use the Pythagorean theorem. This is like the easiest lesson in Geometry.

  24. anonymous
    • one year ago
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    this question has me totally confused im thinking u had to find the angles to classify it

  25. sepeario
    • one year ago
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    another way would've been to use the law of sines to work out the angles.

  26. anonymous
    • one year ago
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    @NICK702222 you still there?

  27. anonymous
    • one year ago
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    Yeah

  28. sepeario
    • one year ago
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    so @joquez14 if you want to evaluate the angles you can also do that.

  29. anonymous
    • one year ago
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    I'm super confused

  30. anonymous
    • one year ago
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    Just answer my question. :)

  31. anonymous
    • one year ago
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    Is the sum of A and B greater than, less than, or equal to C?

  32. anonymous
    • one year ago
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    is sine not apart of sohcahtoa

  33. anonymous
    • one year ago
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    @Sepeario Just trying to help her find the easiest solution. :)

  34. anonymous
    • one year ago
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    Sine, in fact, is part of the SohCahToa. S stands for Sine.

  35. anonymous
    • one year ago
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    thats wat i thought so i wasnt completly wrong then

  36. anonymous
    • one year ago
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    Is 58.6 equal to 57.7? Is 58.6 more than 57.7? Is 58.6 less than 57.7? @NICK702222

  37. anonymous
    • one year ago
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    Nope

  38. anonymous
    • one year ago
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    Obtuse?

  39. anonymous
    • one year ago
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    lol nope thts hilarious

  40. anonymous
    • one year ago
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    No no wait

  41. anonymous
    • one year ago
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    If c=sum, the triangle is right If c>sum, the triangle is obtuse If c<sum, the triangle is acute.

  42. anonymous
    • one year ago
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    You're almost there. :)

  43. anonymous
    • one year ago
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    First use the distance formula to find the sides. After using the distance formula, you can use Cosine Law to find the angles. But for this problem, one just needs to use the distance formula to find the sides and then graph it and they they tell what type of triangle and to check if it is a 90 or not they can use \( a^2+b^2=^c \) but one can also use this to tell for the other too, but you might be able just to eye it to tell.

  44. anonymous
    • one year ago
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    If 57.7=58.6, the triangle is right If 57.7>58.6, the triangle is obtuse If 57.7<58.6, the triangle is acute.

  45. anonymous
    • one year ago
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    Did you get it?

  46. anonymous
    • one year ago
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    So it's acute

  47. anonymous
    • one year ago
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    Got it right! I'd really appreciate it if you would give me a medal. :)

  48. anonymous
    • one year ago
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    Thanks for the help

  49. anonymous
    • one year ago
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    You're welcome!

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