Heptagon
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A heptagon
A shape with 7 sides and 7 angles is called a heptagon. A heptagon is a polygon with seven straight sides and seven interior angles. Each interior angle of a regular heptagon measures 128.57 degrees.
The interior angles of a 7 sided polygon add up to 900 degrees
It is a heptagon that is a polygon having 7 sides with 7 interior angles.
the interior angle of a 7 sided regular polygon is 128.57 degrees