1 5 x + 1 3 = −1 2 x + 8 3
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So you question is most likely about a triangle DEF with the 3 angles being named D, E, F. The triangle would look something like the image attached below.
If that is what is being asked then i need more info to answer but
By Definition it would be 180 degrees.
If that is what is being asked then i need more info to answer but
By Definition it would be 180 degrees.