Question

tolong kak
saya minta tolong​

Answer 1

V = V ½ tabung + Volume balok

= (1/2 × πr²t) × (p × ℓ × t)

= (1/2 × 22/7 × 7² × 20) × (20 × 14 × 10)

= (1/2 × 22/7 × 49 × 20) × (20 × 14 × 10)

= (1/2 × 22 × 7 × 20) × (280 × 10)

= (1/2 × 3,080) × (280 × 10)

= 1,540 + 2,800

= 4,340 cm³ [b]

Answer 2

Jawab:

Volume balok = 20 x 14 x 10

                       = 2.800 cm³

Volume setengah tabung = x x 7² x 20

                                           = x x 49 x 20

                                           = 1.540 cm³

Volume balok + Volume setengah tabung

= 2.800 + 1.540

= 4.340 cm² ( B )