Question

If diameter and height of a cylindrical tank are
interchanged, how its volume is going to be affected (e.g. take r =21 cm, h=7 cm and r=7, h =21 cm)​

Answer 1

Answer:

Now,

Step-by-step explanation:

initial volume of cylinder = πr^2h

= π × 21 × 21 × 7 cm^3

interchanged volume of cylinder = π × 7 × 7 × 21 cm^ 3

Affected volume of cylinder = π × 21 21 × 7 - π × 7 × 7 × 21

= π × 7 × 21 (21 - 7)

= 22/7 × 7 × 21 × 14

= 22 × 21 × 14

= 6468 cm^3

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