# Math Help - some help in Path integral

1. ## some help in Path integral

find path integral to find surface area let the hiet h and r=a

find c(t)
z= ax+by+c

the pic in Attach Files

2. I divided the Figure to two peases

and i created for each one

the area of part A = PI .a.H/4

the area of part B = (PI .a.H/4)/2

I think what I did is true

but how can I find the path integral for part C ??

i hope to find some helpe on that

3. I do not understand the question.
Is this a surface integral or a line integral?

4. this is the surface area using path integral

What remains is finding path integral

C(t)= ( .........,............,...........)