Question

give the answer of the following question

Answer 1

(old) r = 4cm

(old) h = 4cm

(new) r = 16 cm

CSA of cylinder = 2πrh

2π × 4 × 4 = 2π × 16 × h

⇒ 4 × 4 = 16 × h

⇒ 16h = 16

⇒ h = 1cm