Apolygon with an unknown number of sides is called a(n)

nonagon.

universal polygon.

polygonal variable.

n-gon.

n-gon

Step-by-step explanation:

you have to divide 360 by the difference of the angle of 180 degrees

polygonal variable

Step-by-step explanation:

idk rlly know, just sounds right

i used to know but i learned it a long time ago sorry

step-by-step explanation:

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.