Can anyone help me whats is -867-(45)7{76+78}=
1 answer:
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Since BCDEF is regular, we know right away that 
because the measures of all exterior angles of any regular polygon add to 360 degrees; they are all of equal measure here, so we divide 360 by 5.
For the pentagon BCIHG, the same is true, which means we have the equation
So
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For the pentagon BCIHG, the same is true, which means we have the equation
So
