Question 256587
Given, the radius of the cone r = 6 in
       the slant height       l = 8 in
       The curved surface       = pi*r*l
                                =(22/7)*6*8 
                                = 150.86 sq in
       Base area                = pi*r^2
                                =(22/7)*6^2
                                = 113.14
Therefore total surface of the cone = 150.86+113.14
                                    = 264 sq in