Jawab:

1.)

a.) Volume = s × s × s

= 4 × 4 × 4

= 64 Kubus Satuan

b.) Volume = s × s × s

= 7 × 7 × 7

= 343 Kubus Satuan

2.)

Nomor 2 Sudah Benar Kak :D

3.)

a.) Volume = r × r × r

= 6 × 6 × 6

= 216 cm³

b.) Volume = r × r × r

= 8 × 8 × 8

= 512 cm³

c.) Volume = r × r × r

= 10 × 10 × 10

= 1.000 cm³

d.) Volume = r × r × r

= 15 × 15 × 15

= 3.375 cm³

e.) Volume = r × r × r

= 20 × 20 × 20

= 8.000 cm³

f.) Volume = r × r × r

= 21 × 21 × 21

= 9.261 cm³

4.)

Volume Bak (Terisi Penuh) = s × s × s

= 7 × 7 × 7

= 343 dm³

Karena 1 dm³ = 1 Liter, Jadi 343 dm³ = 343 Liter ..

Air Yang Dibutuhkan = 343 Liter - 320 Liter

= 23 Liter

5.)

a.) Panjang Rusuk = Panjang Seluruh Kawat ÷ 12

= 144 ÷ 12

= 12 cm

b.) Volume = 12 × 12 × 12

= 1.728 cm³

Semoga Membantu ..