volume bola yang berdiameter 21cm adalah.... a. 1.386 b. 2.910 c. 4.851 d. 5.880

Vol
= 4/3 (1/8) pi d^3
= 4/3 (22/7) (1/8) (21)(21)(21)
= 22(21)(21)/2
= 11(21)(21) cm^3
= 4851 cm^3



=> C

Diket = d = 21 cm
Dit = v
jawab = v = [tex] \frac{4}{3} [/tex] π r³ [tex] \frac{1}{8} [/tex]
                     [tex] \frac{4}{3} [/tex] x [tex] \frac{22}{7} [/tex] x 21 cm x 21 cm x 21 cm x [tex] \frac{1}{8} [/tex]
                     4851 cm³