bantuin yah soalnya di kumpulin besok yang bantuin yang punya ig aku follow tinggal sebutin nama ignya apa:)

2. r = 21 cm, d= 42 cm, π = 22/7
L = 22/7 x 21 x 21 = 1386

3. r= 10cm, d = 20cm, π = 3,14
L = 3,14 x 10 x 10 = 314cm

4. r = 15cm, d = 30cm, π = 3,14
L = 3,14 x 15 x 15 = 706.5

5. r = 12cm, d= 24cm, π = 3,14
L = 3,14 x 12 x 12 = 452,16

6. r = 17,5 cm, d = 35cm, π = 3,14
L = 3,14 x 17,5 x 17,5 = 961,62
7. r = 14cm, d = 28cm, π = 22/7
L = 22/7 x 14 x 14 = 616

8. r = 15 cm, d = 30 cm π = 3,14
L = 3,14 x 15 x 15 = 706,5

9. r = 17cm, d= 34cm π = 3,14
L = 3,14 x 17 x 17 = 907,46

10. r = 20cm, d= 40cm π = 3,14
L = 3,14 x 20 x 20 = 1256