A regular polygon<span> is equilateral (it has equal sides) and equiangular (it has equal angles). To find the </span>area<span> of a regular </span>polygon<span>, you use an apothem — a segment that joins the </span>polygon's<span> center to the midpoint of any side and that is perpendicular to that side (segment HM in the following figure is an apothem).</span>
Answer: It varies.
It depends on how frequent the plant grows by 10 cm, and how much time there is for the growing.
3 1/9 or 3.11 because you get a remainder of 1.
Here is the diagram and the required value of other angle.
The answer to 1/2y+3/2=3y+4 is y= -1