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19 April, 01:14

PTG has side lengths of 18 cm, 27 cm, and 13 cm. which type of triangle is PTG? The answer is obtuse.

I found the answer but if anyone needs it here ya go

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  1. 19 April, 01:33
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    To know what kind of triangle is it. use the pythagorean theorem:

    A^2 + B^2 = C^2,

    where C is the longest side of the triangle

    if it satisfies the equation then it is a right triangle

    if it does not then A^2 + B^2 > C^2 so it is acute triangle

    if A^2 + B^2 < C^2 it is obtuse triangle

    18^2 + 13^2? 27^2

    324 + 169? 729

    493 < 729 so it is obtuse triangle
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