no .4-6 tolong cari volume nya

5 ) dik : d=12 r=6
t= 21
dit : v...
jwb : phi × r × r × t
= 22/7 × 6 × 6 × 21 = 2376 dm
6) dik: r = 10
t= 8
dit : v..?
jwb : phi × r ×r × t
3,14 ×10 × 10 × 8
= 314 × 8 = 2512 dm

5. V=Πr^t
= 22/7. 6. 6. 21
= 22. 6. 6. 3
= 132. 6. 3
= 792. 3
= 2376 dm
6. V= Πr^t
= 3,14. 10. 10. 8
= 31,4. 10. 8
= 314.8
= 2512 dm

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