I have a problem where i dont even know where to begin. Usually, when i post problems here i have something to show but this time i dont. Im sorry for that.
here is the problem:
FInd the surface area of the torus (or donut) obtained by rotating the circle (x - b)2 + y2 = a2; (a < b) about the
y-axis.
would i do something like the Area of a surface of revolution theorem?:
if so i am not even sure what to do to get it into the form to put it into that formula?
Any help is appreciated since i am lost!!
Thank you