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343 = S x S x S
S = ∛343 = 7 cm
Maka;
Lp = 6 x S x S = 6 x 7 x 7 = 294 cm^2
343 cm ^3 = r^3
r = akar 3 dari 343cm^3
r = 7
luas permukaan kubus
= 6 x s^2
= 6 x (7cm)^2
= 6 x 49cm^2
= 294 cm ^2