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Penyelesaian :

Volume tabung = a
a = phi × r^2 × t
a = 22/7 × 3,5 cm × 3,5 cm × 21 cm
a = 808,5 cm^3
Opsi C

- MathLovers♡

Vtab=Llingkaran×t
Vtab=πr2×t
Vtab=22/7×3,5×3,5×21
Vtab=22×0,5×3,5×21
Vtab=22×1,75×21
Vtab=462×1,75
Vtab=808,5

Jawaban : C