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the cyide4. Aclosed circular cylinder has diameter 20 cm and height 30 cm. Find the total surface area of the cylinder.(n=314)

Answer»

Total area of cylinder= 2*pi (r*h + r*r)= 2*3.14(10*30 + 10*10)= 2*3.14(300 + 100)= 2*3.14(400)= 800*3.14 = 314*8= 2512 cm^2



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