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Thread: how to find a number in Circle of Triangle picture Q3

  1. #1
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    how to find a number in Circle of Triangle picture Q3

    Can you help to find a number in Circle of Triangle on Q3 of the picture
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  2. #2
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    Re: how to find a number in Circle of Triangle picture Q3

    For 3 (a) ... (see diagram). I labeled the corner values $a$, $b$, and $c$. Set up three equations.

    $a+b=-1$

    $b+c=-6$

    $a+c=-9$

    Solve the system of equations ... you should get $a=-2 $, $b=1$, and $c=-7$
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  3. #3
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    Re: how to find a number in Circle of Triangle picture Q3

    many thanks to Skeeter
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