The polygon shown in the figure is b. Rhombus.
What is a polygon?
A polygon is a closed figure made up of three or more line segments connected end to end.
Regular polygons have all side the same and that apothem bisects the side in two parts, (provable by symmetry).
A square is always a rectangle, parallelogram, rhombus and quadrilateral but its reverse statement may or may not be true.
A rhombus is a parallelogram but all sides of the same length.
An exterior angle is a measure of rotation between one extended side(we extend it virtually) of the polygon with its adjacent side which is not extended.
The polygon shown in the figure is b. Rhombus.
Learn more about regular polygon here:
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