SOLUTION: what is the easiest method to find the surface area of a cone step by step and also the surface area for prisms

Algebra ->  Surface-area -> SOLUTION: what is the easiest method to find the surface area of a cone step by step and also the surface area for prisms      Log On


   

Question 269900: what is the easiest method to find the surface area of a cone step by step and also the surface area for prisms
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
The surface area of a cone is
SA+=+pi%2Ar%5E2+%2B+pi%2Ar%2Al
where l = slant height
-----
The surface area of a prism in general is
SA+=+Bh
where B is the area of the base. The base could be anything.