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mudah aja:
V = 4/3 x phi x r x r x r
= 4/3 x 22/7 x 14 x 14 x 14
= 11.498,67 cm3
L = 4 x phi x r x r
= 4 x 22/7 x 14 x 14
= 2.464 cm2
sekiannn