For a right circular cone, if the radius is reduced to 1/5 its original size and the slant height is reduced to 1/6 its original size, what is the surface area if the original radius is 8 centimeters and the original slant height is 13 centimeters?

a. 18.63 cm squared
b. 18.74 cm squared
c. 18.84 cm squared
d. 18.93 cm squared

The correct answer of the given question above would be option D. 18.93 cm squared. In order to get this answer, all you have to do is solve it using the regular computation. The surface area if the original radius is 8 centimeters and the original slant height is 13 centimeters would be 18.93 cm squared. Hope this answer helps.