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Question 128
What is the total surface area (in cm2) of a cylinder having radius of base as 7 cm and height as 15 cm?
Solution
Radius of cylinder = $$r=7$$ cm and height = $$h=15$$ cm
=> Total surface area = $$2\pi r (r+h)$$
= $$(2\times\frac{22}{7}\times7)(7+15)$$
= $$44\times22=968$$ $$cm^2$$
=> Ans - (C)
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