Jawaban:

Penjelasan dengan langkah-langkah:

1.)

Jari-jari (r) = 14 cm

Tinggi tabung (t) = 25 cm

V = π r² t

= 22/7 × 14 × 14 × 25

= 22 × 28 × 25

= 15.400 cm³

2.)

Jari-jari (r) = 7 cm

Tinggi tabung (t) = 10 cm

Lp = 2 π r (r + t)

= 2 × 22/7 × 7 (7 + 10)

= 2 × 22 × (17)

= 44 × (17)

= 748 cm²

3.)

Volume tabung = 27.720 cm³

Tinggi tabung = 20 cm

V = π r² t

27.720 = 22/7 × r² × 20

27.720 = 440/7 × r²

r² = 27.720 × 7/440

r² = 63 × 7

r² = 441

r = √441

r = 21 cm

4.)

Jari-jari (r) = 10 cm

Tinggi tabung = 5 cm

V = 2 π r (r + t)

= 2 × 3,14 × 10 (10 + 5)

= 62,8 × (15)

= 942 cm²