2 years ago

Answer plsss as soon as possible

Mathematics

1 answer:

shtirl [24]2 years ago

3 0

Answer:

Step-by-step 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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