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Help I don't understand​
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8 votes
Help I don't understand​

Help I don't understand​-example-1
User Alexander Jardim
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8.6k points

1 Answer

9 votes

Answer:

sum of interior angle of polygon=(6-2)×180

x+90+x+9+145+156+120=720

2x=720-520

x=200/2=100

User James Koppel
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