If you have a Lease, you should look to when the month-to-month obligations are effective. If it states that you pay on a calendar month basis, then your notice will be considered as being more that the required 30 days, and that you owe for the full following month.
A regular polygon is equiangular, which means all angles are the same measure. In the case of a regular hexagon, the sum of 720 degrees would be distributed evenly among the six sides. So, 720/6 = 120. There are six angles in a regular hexagon, each measuring 120 degrees.
A hexagon has six sides and six vertices, or points. The interior angles of the hexagon will add up to 720 degrees. The most common hexagon is the regular hexagon in which all of the sides are the same length. Perhaps the most recognizable hexagon-shaped item in life is a nut.