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11 March, 19:19

Suppose someone tells you that she has a triangle with sides having lengths 2.2, 4.5, and 6.7. Is this a right triangle?

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  1. 11 March, 19:33
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    You can apply the Pythagorean theorem:

    a^2 + b^2 = c^2

    c is the longest side of the triangle

    2.2^2 + 4.2^2 = 6.7^2

    4.84 + 17.64 = 44.89

    22.48 = / = 44.89

    That is not a right triangle
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