Question

Since quarantine my brain seems to be forgetting things.

what's the formula of area of a polygon
(I think is something like 1/2 AP but i cant remember what the A and P stand for, and idk if that's even right)
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Answer 1

Explanation:

for the area of a regular polygon, the formula is area=1/2 perimeter x apothem, or area=1/2pa

the apothem(A) is the segment that joins the center to the midpoint of any side