Lingkaran mempunyai keliling 8.Berapakah Diameternya

Keliling = π.D
D = Keliling : π
= 8 : 22/7
= 8 × 7/22
= 28/11
maaf kalo salah

K lingkaran = 2πr
8 = 2 x (22/7) x r
8 = 44/7 x r
r = 8 : (44/7)
r = 56/44
r = 14/11

d = 2r
d = 2 (14/11)
d = 28/11 = 2 6/11

maaf jika keliru. semoga membantu