Menghitung keliling lingkaran dg jari2 28 cm dan pi=22/7

→ r = 28 cm


Keliling lingkaran :

K = 2 x π x r

K = 2 x 22/7 x 28

K = 2 x 22 x 4

K = 176 cm ✔

keliling lingkaran = 2×π×r
2×22/7×28
176 cm