How Do You Calculate the Area of a Cylindrical Fin?

[Studious_stud]

Homework Statement

Homework Equations

A = pi D^2/4

Q = hA(Ts - Tinfinity)

Hey, when calculating the area of a cylindrical fin, are you supposed to calculate the area of just the tip (area of a circle), or the surface area of the entire cylinder?

Thanks everyone

 

[madmike159]

I would of thought the whole surface area, since heat can be lost through the whole surface.