tolong di jawab soal matematika nomor 5.9.dan10 pake caranya plisss butuh banget

5) r = 12 cm
d = 2 × 12 = 24 cm
L = 3,14 × 12 × 12 = 452,16 cm²

9) d = 34 cm
r = d ÷ 2 = 34 ÷ 2 = 17
L = 3,14 × 17 × 17 = 907,46 cm²

10) d = 40 cm
r = 40 ÷ 2 = 20 cm
L = 3,14 × 20 × 20 = 1256 cm²

5) r = 12 cm
d = 2 × 12 = 24 cm
L = 3,14 × 12 × 12 = 452,16 cm²

9) d = 34 cm
r = d ÷ 2 = 34 ÷ 2 = 17
L = 3,14 × 17 × 17 = 907,46 cm²

10) d = 40 cm
r = 40 ÷ 2 = 20 cm
L = 3,14 × 20 × 20 = 1256 cm²