pakai cara ny ,tolong di bantu

21. Dr = akar 3 x s^2
Akar 48 = 3 x s^2
S^2 = akar 48 :3
S = 16 cm
Volume = 16^3
= 4086 cm^3

22. Luas = 6 x s^2
486 = 6 x s^2
S^2 = 486 : 6
S = akar 81
= 9 cm

Volume = 9^3
= 729 cm^3