Question 653430
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The perimeter is the sum of the measures of the sides, so:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 3x\ +\ 4x\ -\ 1\ +\ 5x\ =\ 47]


Solve for *[tex \LARGE x], then calculate *[tex \LARGE 3x], *[tex \LARGE 4x\ -\ 1], and *[tex \LARGE 5x].


Label the two smaller values *[tex \LARGE a] and *[tex \LARGE b], then the largest *[tex \LARGE c].


Calculate *[tex \LARGE a^2\ +\ b^2].  If that is equal to *[tex \LARGE c^2] it is a right triangle, otherwise not.


OR:


Calculate *[tex \LARGE (3x)^2\ +\ (4x\ -\ 1)^2] and see if it is equal to *[tex \LARGE (5x)^2].  If it is, it is a right triangle.  Otherwise not.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
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