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Answer plsss as soon as possible

Answer plsss as soon as possible-example-1

1 Answer

9 votes

Answer:

Explanation:

both angles must add up to 180 so

6x+12+3x+63 must =180

= 9x+75

9x+75=180

-75 -75

9x=105

x=11.66

meaning A is approximately 81.96

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