a wooden article was made by scooping out a hemisphere from each end of the cylinder as shown in figure if the height of the cylinder is 20 cm and its base is a diameter 7 cm find the total surface area of the article when it is it is a ready
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Answer:
formula of total surface area of the cylinder=πdh
put the value=22/7*7*20
=22*20
=440cm²
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