Hitunglah keliling lingkaran jari jaro 49

Keliling = πd
= π2r
= 22/7 × 2 × 49
= 22 × 2 × 7
= 308 satuan luas

Semoga bermanfaat 🙂

R = 49

keliling = 2πr
= 2 x 22/7 x 49
= 2 x 22 x 7
= 308 cm