the sum of the angle measures of any triangle is 180 degrees. suppose that one triangle has a degree measure of 9x+2 and the other has a degree of 8x+1. write an expression for the degree measure of the third angle in the triangle.

Respuesta :

9x + 2 + 8x + 1 = 17x + 3
The answer is 180 - 17x + 3 I'm pretty sure
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