Answer:
area of polygons
Step-by-step explanation:
you've been given the radius
find the central angle 360/8
highlight a triangle for consideration
draw an altitude
this is your apothem
use sine to find the opposite side
double that, that is 1 side, multiply by 8, that is your perimeter
use cosine to find the apothem length
use 1/2aP to find the area.
