Two round faces+sides.

=π×(0.6÷2)? ×2+π×0.6× 1

=0. 18π+0.6π

=0.78π

≈2.4492 (m2) (π is calculated as 3. 14)

2.4492×0.2≈0.49 (kg)

A: It takes about 0.49 kg of paint to brush an oil drum.