The total surface area of a cone whose radius is 2 r and slant height 2l is (A) 2πr (l + r)
(B) πr (l + 4 r )
(C) πr (l + r)
(D) 2πrl

Step-by-step explanation:

The total surface area of a cone is given by :

Put r = 2r and l = 2l in the above formula

Hence, the total surface area of the cone is .

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