The one you cursor is already on.
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I would say the first one
Answer:
A square is a polygon with 4 sides of equal length and 4 right angle corners (90 degree corners).
Because it has 4 sides of equal length, a square is a regular quadrilateral.
A square is also a rectangle with equal sides and a rhombus with right angles.
The area of a square is equal to the length of one side to the power of two (length squared).
