SOLUTION: if a triangle has an exterior angle of (3x + 4) degrees and nonadjacent interior angles of x degrees and 106 degrees, what is the measure of the exterior angle?

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Question 1100021: if a triangle has an exterior angle of (3x + 4) degrees and nonadjacent interior angles of x degrees and 106 degrees, what is the measure of the exterior angle?
Answer by Boreal(15235) About Me  (Show Source):
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The angles of the triangle are x, 106 and 180-(106+x), or 74-x
The third angle, 74-x and the exterior angle 3x+4 are adjacent and make up a straight line, 180 degrees.
78+2x=180
2x=102
x=51 degrees, the exterior angle is 157 degrees.