Answer:
280 degrees
Step-by-step explanation:
I hope i'm correct.
So because of the rule vertical angles 2 and 5 are both equal to 40 degrees. Based on that we can use the rule supplementary angles (where two angles together equal to 180 degrees) So since 2 equals to 40 degrees, subtract that from 180. 180-40, which is 140. we need to find <1+<6 so because of vertical angles add 140 and 140. Which is 280 degrees.
I hope this helps :)
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