A wooden article was made by scooping out a hemisphere from each end of a solid cylinder, as shown in fig. 2. If the height of the cylinder is 10 cm and its base is of radius 3.5 cm. Find the total surface area of the article.
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CSA of cylinder= 2πrh
=2×22/7×3.5×10
=220cm^2
CSA of hemisphere=2πr^2=2×22/7×3.5^2
=77cm^2
So,
Total curved surface area of bases=77+77=154cm^2
Total surface area of article =220+154
=374cm^2
=2×22/7×3.5×10
=220cm^2
CSA of hemisphere=2πr^2=2×22/7×3.5^2
=77cm^2
So,
Total curved surface area of bases=77+77=154cm^2
Total surface area of article =220+154
=374cm^2
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