Each interior angle of a regular decagon would measure 144 degrees,
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Each angle for a regular nonagon is 140 degrees each.
A regular decagon would have five sets or parallel lines.
Oh, dude, a decagon has like 10 angles. Yeah, it's called a "deca"gon for a reason, you know, like decimal, decade, decathlon. It's like a polygon with 10 sides, so it's got 10 angles. Math can be chill sometimes, right?
The sum of the interior angles of any regular polygon of n sides is equal to 180(n - 2) degrees. Each angle would be 164.35 degrees
A decagon has 10 sides. If it is a regular decagon, all of the sides are the same length. Each side would be 0.8 yards or 2.4 feet in length.