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HELP ASAP!! What’s the answer to this? (with steps)

HELP ASAP!! What’s the answer to this? (with steps)-example-1

1 Answer

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Answer:

x = 13.5°

Explanation:

Angles 2 + 3 = a straight line, so 180°

180 - 66 = 114 = angle 2

114 = 10x - 21

114 + 21 = 10x

135 = 10x

135 / 10 = x

13.5 = x

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