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The angle measurements in the diagram are represented by the following expressions.
A = 8x+ 78°
B = 2x + 114
B=
Since angle A and B are interior angles, we can set them equal to each other. So then we can solve for x and plug x in for B. 1) 8x + 78 = 2x + 114 2) 8x - 2x = 114 - 78 3) 6x = 36 4) 6x / 6 = 36 / 6 5) x = 6 Now we can plug in x to equation b 1) 2(6) +114 2) angle b = 126 hope this helps :)
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