Math grade 8
posted by Carrie .
Karim is painting a design on a cylindrical barrel. The height of the barrel is 1.2 m. The radius of its base is 0.3 m. What area will the paint have to cover? (Remember to include the bottom and lid of the barrel.)
Math grade 8 -
area = 2πr^2 + 2πrh
now just plug in your values for r and h.