1. Find the total surface area $$(in cm^2)$$ of a right circular cylinder of diameter 28 cm and height 12 cm.
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By: anil on 05 May 2019 02.04 am
Height of cylinder, $$h=12$$ cm and radius, $$r=frac{28}{2}=14$$ cm Total surface area of cylinder = $$2pi r(r+h)$$ = $$2 imesfrac{22}{7} imes14 imes(14+12)$$ = $$88 imes26=2288$$ $$cm^2$$ => Ans - (D)
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