There is no 'why' because this is not true. Just take a triangle for example. The sum of the exterior angles is 360, but that is not the only polygon. Now take a square. The sum of the exterior angles is 1080. So your statement is not true for a square, rectangle, parallelogram, lots of other polygons.
The exterior angles of any polygon will always add up to 360 degrees.
The exterior angles of any polygon add up to 360. 360/15 = 24
The sum of the exterior angles of any polygon is 360 degrees
The sum of the exterior angles of ANY polygon is 360 degrees.
The exterior angles of any polygon add up to 360.
The exterior angles of any polygon add up to 360.
The exterior angles of any polygon add up to 360 degrees.
The exterior angles of any polygon add up to 360 degrees.
The exterior angles of any polygon will always add up to 360 degrees.
360° This applies to the exterior angles of any polygon.
The exterior angles of any polygon add up to 360 degrees
The exterior angles of any polygon add up to 360. 360/15 = 24
The exterior angles of any polygon add up to 360 degrees
The sum of the exterior angles of any polygon is 360 degrees
The sum of the exterior angles of ANY polygon is 360 degrees.
The exterior angles of any polygon add up to 360.
The sum of the exterior angles of any polygon is 360 degrees.