Soal MTK Kelas 9 Halaman 280 - 281 dan Kunci Jawaban Rumus Tabung

  = π × 7 × 7 × 6 cm⊃3;

  = 294 π

  = 294 × ⊃2;⊃2;/₇ cm⊃3;

  = 924 cm⊃3;

c. r = 4 cm dan t = 12 cm

LP = 2 π r (r + t)

    = 2 × π × 4  (4 + 12) cm⊃2;

    = 128 π

    = 128 × 3,14 cm⊃2;

    = 401,92 cm⊃2;

V = π r⊃2; t

  = π × 4 × 4 × 12 cm⊃3;

  = 192 π cm⊃3;

 = 192 × 3,14 cm⊃3;

  = 602,88 cm⊃3;