Answer:
For the first picture, x = 126 and therefore x - 30 = 96
Second picture:
Step-by-step explanation:
since the sum of the angles is 540°, we can say that
x + x + (x - 30) + (x - 30) + (x - 30) = 540
5x - 90 = 540
5x = 630
x = 126
therefore x - 30 = 96°
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2nd picture
we use the same method as we did in the first picture:
5x + 2x + 110 = 180
7x + 110 = 180
7x = 70
x = 10, 5x = 50, 2x = 20
