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Aleonysh [2.5K]
3 years ago
11

I need help on this question.

Mathematics
1 answer:
tatiyna3 years ago
7 0

Answer:

a=127

Step-by-step explanation:

Okay so basically thats a straight line that the angles are on right? Yes so that entire angle is equal to 180 so you set up the equation 15+38+a=180 and then you simplify which is 53+a=180, then you subtract 52 from both sides and you get a=127. Hope this helps :)

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