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3 June, 09:08

Does 9,12,15 form a right triangle

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  1. 3 June, 09:30
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    Yes.

    Step-by-step explanation:

    Note that 15^2 = 122^ + 9^2 (225 = 144 + 81 = 225).

    So by the Inverse of Pythagoras Theorem it is a right triangle.
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