Mr. Butterworth baked a cake in the shape of a cylinder. The cake had a diameter of 9 inches and a height of 5 inches. He spread icing over the entire cake (except the bottom). How many square inches of icing did he use

Question

anonymous · Answer

you're basically just doing surface area of a cylinder minus the bottom. so just use to formula 2pi x r x h + pi x r^2
2pix4.5x5 + pi x 20.25
141.37+63.62
so you should get 204.98

anonymous · Answer

OMG!!!!! Thank you so much. You just saved my life.