tolong jawab yaaaa mencari luas lingkaran jika diketahui jari jari nya tapi tolong kali pakai cara 1. 14 cm 2. 21 cm 3. 28 cm 4. 35 cm 5. 42 cm 6. 49 cm 7. 56

1. = 22/7 x 14 x14
= 616 cm
2.= 22/7 x 21 x 21
= 1386 cm
3.= 22/7 x 28 x 28
=2464 cm
4. = 22/7 x 35 x 35
= 3859 cm
5.= 22/7 x 42 x42
=5544 cm
6.= 22/7 x 49 x 49
= 7546 cm
7. = 22/7 x 56 x56
= 9856 cm
8. =22/7 x 63 × 63
=12474 cm
9. = 22/7 × 70 × 70
= 15400 cm
10. =22/7 × 77 × 77
=18634 cm