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anonymous

  • one year ago

******WILL FAN AND MEDAL!****** Which set of side lengths will form a right triangle? 5, 11, 13 9, 24, 25 7, 24, 25 8, 13, 17

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  1. idku
    • one year ago
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    has to be a^2+b^2=c^2

  2. anonymous
    • one year ago
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    What do you mean by that?

  3. idku
    • one year ago
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    plug in the biggest side for c, and smaller sides for a and b

  4. idku
    • one year ago
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    triangle with sides a b and c is only a right triangle if: a^2+b^2=c^2

  5. anonymous
    • one year ago
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    So I put in the answer choices with power to the 2nd?

  6. anonymous
    • one year ago
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    and add them up? @idku

  7. anonymous
    • one year ago
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    @LynFran @Falling_In_Katt

  8. anonymous
    • one year ago
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    @aleeah1404 @Ddaddysgirl14 @math1234 @mathmate @Rabakku @rvc @TillLindemann @welshfella

  9. anonymous
    • one year ago
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    I say a or b cause the bottom is the smallestr and the 2 sides are the same

  10. anonymous
    • one year ago
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    Okay.

  11. welshfella
    • one year ago
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    try the first one the longest side = 13 13^2 = 169 12^2 = 144 5^2 = 25 what do you infer from these results?

  12. anonymous
    • one year ago
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    What do you mean by infer?

  13. welshfella
    • one year ago
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    what conclusion do you come to? are these the 3 sides of a right angled triangle or not ?

  14. anonymous
    • one year ago
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    d

  15. anonymous
    • one year ago
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    Oh, I'm guessing it is.... I mean I kind of see what you did, and I can tell that the 3 lengths equaled to the right angle... I guess..

  16. welshfella
    • one year ago
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    well 13^2 = 12^2 + 5^2 - which can only mean that the triangle is right angled - according to the Pythagoras theorem

  17. welshfella
    • one year ago
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    the square on the hypotenuse ( largest side) = sum of the squares on the other 2 sides - is only true for right angled triangles

  18. anonymous
    • one year ago
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    Okay.

  19. welshfella
    • one year ago
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    in symbols that is c^2 = a^2 + b^2 where c is the hypotenuse

  20. anonymous
    • one year ago
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    Okay. Thank you!

  21. welshfella
    • one year ago
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    yw

  22. welshfella
    • one year ago
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    you might like to check out the other 3 - theres at least one which is a right angled triangle

  23. anonymous
    • one year ago
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    Okay.

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