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A 12-sided polygon will contain ?? straight angles in the sum of its vertices. Pls help me

A 12-sided polygon will contain ?? straight angles in the sum of its vertices. Pls help me
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A 12-sided polygon will contain ?? straight angles in the sum of its vertices. Pls help me

User Judes
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A rule to remember:
The inside angles of a polygon with 'N' sides add up to (N - 2) straight angles.

12 sides ==> 10 straight angles = 1,800 degrees
User Monyag
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