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3 votes
I need help with this ^

I need help with this ^-example-1

1 Answer

6 votes

Answer:

S=6°

Explanation:


4s +12 + 20s - 7 + 7s - 11 = 180 \\ 31s - 6 = 180 \\ 31s = 186 \\ s = 6

User A Webb
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