Mathematics, 31.03.2020 22:58, StupidBoy

Please help me understand this so i can get it in my head.
I know that angles 1,2,3 need to be 180 so I have 3 as 82
then for angles 4,5,6 has to be 180 as well so have angle 5 as 42
angle 4 as 56 and angle 6 as 82
am I on the right track?
then for angles 8 and 11 I have 69 for each

Please help me understand this so i can get it in my head. I know that angles 1,2,3 need to be 180 s

Answers: 2

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Please help me understand this so i can get it in my head.
I know that angles 1,2,3 need to be...