Răspuns :
P=perimetru ; r=raza
[tex]P=2* \pi *r=2*3,14*8=50,24 cm[/tex]
A=aria
[tex]A= \pi *r ^{2} =3,14*8 ^{2} =200,96 cm ^{2} [/tex]
[tex]P=2* \pi *r=2*3,14*8=50,24 cm[/tex]
A=aria
[tex]A= \pi *r ^{2} =3,14*8 ^{2} =200,96 cm ^{2} [/tex]