jika keliling suatu lingkaran 154dm.hitunglah panjang jari jarinya

moga bener biar km seneng yak

[tex] \\ r \: = k \div 2 \times \frac{22}{7} \\ r \: = 154 \div 2 \times \frac{22}{7} \\ r \: = 154 \div \frac{44}{7} \\ r \: = 154 \times \frac{7}{44} \\ r = 24.5 \: cm[/tex]