2. A cylinder is closed at both the ends by

hemispheres. The radius of the cylinder is

21 cm and the total height of the article is

92 cm. Find the total surface area of the

article.

# 2. A cylinder is closed at both the ends by

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Answer:tsa=2πr

21÷92 gives you answer

Answer:first find the total surface area of cylinder and then find the total surface area of hemisphere and then add it