KUNCI JAWABAN Matematika Kelas 9 SMP Halaman 280 Kurikulum 2013: Hitung Luas Permukaan dan Volume

= 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;

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)

= 8π + 40π