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There is no special name. And some quadrilaterals with special characteristics (eg a trapezium) could still have all sides of different lengths.
Area: Find some of the lengths, then cut the L in half and work it out from there. Perimeter: Add all the lengths together.
bcuz some r special and some aren't
Different months have different lengths. Depending on what exactly you want to calculate, you can either multiply the length of a specific month - 28, 29, 30 or 31 days - or some type of average (about 30.5) by the number of hours in a day.
You only need one menstrual cup - menstrual cups last for up to 10 years and are reusable. Some people have multiple menstrual cups as they find some different brands work better for them at different points in their cycles, or maybe they will have multiple colours.