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30 circular plates, each of radius 14 cm and thickness 3 cm are placed one above the another to form a cylinder solid. Find

The total surface area.

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The total surface area of the cylinder is 9143.68cm³

A cylinder is a prism with circular base. The total surface area cylinder is expressed as;

SA = 2πr ( r + h)

where r is the radius of the base and h is the height of the cylinder.

Height of the cylinder = 3cm × 30 = 90cm

radius = 14cm

SA = 2 × 3.14 × 14( 14 + 90)

= 87.92 × 104

= 9143.68cm³

Therefore, The total surface area of the cylinder is 9143.68cm³

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