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11 September, 19:37

Is a triangle with the given side lengths of 15cm, 17cm, and 19cm a right triangle?

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  1. 11 September, 19:47
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    Lets see!

    We need to use the pythagorean theorem (a^2+b^2=c^2) to check.

    So ...

    15^2 + 17^2 = 19^2

    225 + 289 = 361

    Hm 225 and 289 do NOT equal 361 therefore it is NOT a right triangle.
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