1.

Find the total surface area of a cone, if its slant height is 21 m and diameter of its base is 24 m.​

Answer»

Slant Height of the CONE is 21 m .Diameter of the BASE is 24 m .To FIND :Total Surface Area of Cone .Solution :Using Formula :Putting VALUES :So , The Total Surface Area of Cone is 1244.5 m² .._______________________C.S.A of Cone = πrlT.S.A of Cone = πr(l+r)Volume of Cone = 1/3 πr²hHere :l = slant height of coner = radiush = height_______________________



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