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The Square

The square is a rectangle with four equal sides.

AB=BC=CE=EA








The sum of the interior angles of a square is 360 degrees.

Every corner is a right angle 90 degrees.


The area of a square is A=S²


The perimeter is P=4S


Moreover, one of the most important properties of the square is that its formed by two 45-45-90 triangles, therefore you can find its diagonal by multiplying a side by √2.

Let's do an example