= 182π cm⊃2;
Volume = π x 7 x 7 x 6
= 294π cm⊃3;
c) Luas = (2π x 4 x 4) + (2π x 4 x 12)
= 32π + 96π
= 128π cm⊃2;
Volume = π x 4 x 4 x 12
= 192π cm⊃3;
BERITA REKOMENDASI
d) Luas = (2π x 1 x 1) + (2π x 1 x 8)
= 2π + 16π
= 18π m⊃2;
Volume = π x 1 x 1 x 8
= 8π m⊃3;
e) Luas = (2π x 2 x 2) + (2π x 2 x 10)