Verified answer

It depends how much of the urn you paint. (What about the inside of the urn, what about the bottom? How thick is the urn?)

Bottom of urn

Area = pi*r^2

= 3.14*15^2

= 706.5 in^2

Covert to ft^2...

= 706.5 in^2 x (1ft/12")^2

= 706.5 in^2 x 1 ft^2 / 144 in^2

= 4.9 ft^2

Outer cylinder of urn

Area = 2*pi*r*height

=2*3.14*15 in*51 in

=4804.2 in^2

Convert to ft^2 by dividing by 144 (shown above)

=33.4 ft^2

Inner cylinder - assume same as outer (meaning urn wall has no thickness)

Inner bottom - assume same as outer bottom (again, urn has no thickness)

If you paint visible outer skin only = 33.4 ft^2

If you paint outer skin & incl outer bottom = 38.3 ft^2

If you paint inner & outer skin - no bottoms = 66.8 ft^2

If you paint all surfaces = 76.6 ft^2

Happy painting.

I assume the urn has an opening at the top which won't be painted.

Also, I assume you won't be painting the bottom.

So the lateral surface area is

33.38 sq. ft.

Aproximately 64 sq ft

The exact # is 63.75