Question

A Solid is composed of cylinder with hemisphosis
ends in the
whole length of solid is 104cm and
radius of each of its hemispherical ends is 7 cm find
its total surface Area
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Answer 1

Answer:Height of the cylindrical part = ( 104 - 2 × 7 ) cm = 90 cm. Area of surface to be polished = 2 ( Curved surface area of the hemisphere ) + ( Curved surface area of the cylinder ). => [ 2 ( 2πR² ) + 2πRH ] cm². ... => 4576 cm².

Step-by-step explanation: