Question

soup can r=6.6cm h=10cm

Answer 1

Do you want surface area, volume, or what?

Answer 2

Well, visualizing the surface area, it's 2 circles (the top and bottom) plus the side, which is essentially a rectangle with a length equal to the circumference of the top and bottom.

Circle area = pi*r^2
Circumference = 2*pi*r

S = 2(circle area) + h(circumference)
S = 2(pi*6.6^2) + 10(2*pi*6.6)
You can simplify that.

For volume, it's (arguably) easier. It's one circle (the top/bottom), and you drag it out to the height of the whole thing. So it's the circle area times the height.

V = h(circle area)
V = 10(pi*6.6^2)
You can simplify that.