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15 April, 14:13

Is 12, 15, and 9 an right angel

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  1. 15 April, 14:41
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    if it was a right angle it would follow the rule for A^2+B^2=C^2

    9^2+12^2=15^2

    81+144=225

    225=225

    yes it is a right angle.
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