Given:
The number of sides of given polygon = 4
To find the sum of the interior angles of the polygon.
Formula
The sum of interior angles of any polygon is
[tex]Sum = (n-2)(180^\circ)[/tex]
where, n be the number of sides of the polygon.
Now,
Taking n = 4 we get,
[tex]Sum = (4-2)(180^\circ)[/tex]
or, [tex]Sum = 2(180^\circ)[/tex]
or, [tex]Sum = 360^\circ[/tex]
Hence,
The sum of the interior angles of the polygon is 360°.
