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SIZIF [17.4K]
4 years ago
12

I don’t know how to do this. I need help

Mathematics
1 answer:
Ivanshal [37]4 years ago
3 0

Answer:

x=45

Step-by-step explanation:

Since 105 degrees equal to the angle right above it:

180=105+30+x

180=135+x

180-135=45

45=x

Check:

105+30+45=180

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