# A solid is compos

Given.

A Solid is made by mounting 2 hemisphere on cylinder

The radius of the hemisphere is 20 cm.

The total height of the cylinder is 35 cm

Formula used/Theory.

Curve surface area of Cylinder = 2πrh

Curve surface area of Hemisphere = 2πr2

As we put 2 hemisphere on both sides of Cylinder

Area of Solid is sum of CSA of both hemisphere and of cylinder

Area of Solid = CSA of cylinder + 2 × CSA of Hemisphere

= 2πrh + 2 × (2πr2)

= 2πr[h + 2r]

Area of solid

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