The lateral surface area of a right circular cone is formula_1 where formula_2 is the radius of the circle at the bottom of the cone and formula_3 is the lateral height of the cone (given by the Pythagorean theorem formula_4 where formula_5 is the height of the cone). The surface area of the bottom circle of a cone is the same as for any circle, formula_6. Thus the total surface area of a right circular cone is:

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