Respuesta :

leshun145

Answer:

Angle TRS is equal to 180 - 9x (straight angles).  


The sum of all the interior angles of a triangle is 180.  Thus,


180 - 9x + 5x + 9 + x = 180, resulting in -9x + 5x + 9 + x = 0.  

Then -4x + x = -9, or -3x = -9, or x = 3 (answer)


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Step-by-step explanation:

The value of x is 96 degrees because...

The exterior angles of a triangle will always add up to 360

that means 130 + 134 = 264

360 - 264 = 96

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