Find the total surface area of each of the right circular cylinders whose radius and height are given
below:
a) radius = 4.9 cm, height =1.5 cm
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Volume of a cylinder=π.r^2.h
= (22/7).7.7.50. cu.cms
=7700 cu.cms. Answer.
Curved surface area = 2.π.r.h
= 2.(22/7).7.50
=2200 sq.cms. Answer.
Total surface area = 2.π.r.(h+r)
= 2.(22/7).7(50+7)
= 44.57
=2508 sq.cms. Answer.
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