54pi units^2
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Total surface area of the cone: (pi*64)+(pi*8*15) = 184*pi or about 578 square units
Slant height of the cone = sqrt(32 + 152) = 15.297 Base surface area = π(3)2 = 9π Curve surface area = π(3)(15.297) = 45.891π Total surface area = 9π + 45.891π = 54.891π
Lateral area is 188.5 m2
81pi
Entire surface area: (2*pi*36)+(12*pi*15) = 252*pi square units