The total surface area of a right circular cone of base radius r, perpendicular height h and slant height / is ….
(A) Trh

1 thought on “The total surface area of a right circular cone of base radius r, perpendicular height h and slant height / is …. <br />(A) Trh”

1. Answer:

   2trh is a formula

   but

   formula of total surface are of a right circular cone is π(r + l) r.

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