Respuesta :

apologiabiology
area=pir^2
circumference=2pir

given
c=8pi
c=2pir
2pir=8pi
divide both sides by 2pi
r=4


area=pir^2
are=pi4^2
area=16pi

area=16pi square meters
midknight9
C = [tex] \pi [/tex]d
C = 8[tex] \pi [/tex]
d = 2r
8 = 2r
r = 4

A = [tex] \pi [/tex][tex] r^{2} [/tex]
A = [tex] \pi [/tex]*[tex] 4^{2} [/tex]
A = 16[tex] \pi [/tex]