Given: Total no. of circular plates = 30

Radius of each circular plate “r”= 14cm

Thickness of each circular plate = 3cm

We have placed circular plates one above the another to form the cylindrical solid

Thus, height of a cylindrical solid “h” = 30 × 3 = 90cm

i) Total surface area of cylinder = 2πrh + πr²

Where,

r = radius of cylinder

h= height of cylinder

ii) Volume of cylinder = πr²h

Where r= outer radius

And

Thus,