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The height of a cone is 16 cm and its base radius is 12 cm. Find thecurved surface area and the total surface area of the cone (Use a = 3.14). |
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Answer» l= √h^2+r^2 =√16^2+12^2 =√256+144 =√400 =20 C.S.A= πrl =3.14*12*20 =753.6 cm^2 T.S.A=πr(l+r) = 3.14*12(20+12) =3.14*12(32) =3.14*384 = 1205.76 cm^2 |
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