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Math Help - Decide whether the three points are vertices of a right triangle...

  1. #1
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    Unhappy Decide whether the three points are vertices of a right triangle...

    Ok, first off... How do I find out whether three plottable points (x,y) are the vertices of a right triangle? I know a^2+b^2=c^2, but that doesn't quite work here...
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  2. #2
    MHF Contributor Mathstud28's Avatar
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    Quote Originally Posted by jscalalamoboy View Post
    Ok, first off... How do I find out whether three plottable points (x,y) are the vertices of a right triangle? I know a^2+b^2=c^2, but that doesn't quite work here...
    Given three points (x_0,y_0),(x_1,y_1),(x_2,y_2)

    If they form a right right triangle

    \bigg[(x_0-x_1)^2+(y_0-y_1)^2]\bigg]+\bigg[((x_0-x_2)^2+(y_0-y_2)^2\bigg]=\bigg[(x_2-x_2)^2+(y_1-y_2)^2\bigg]
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  3. #3
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    Thanks for fast reply bro!
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