“Ellis is painting wooden fenceposts before putting them in his yard. They are each 5 feet tall and have a diameter of 1 foot. There are 10 fenceposts in all. How much paint will Ellis need to paint all the surfaces of the 10 fenceposts? Use 3.14 for π, and round your answer to the nearest hundredth. Provide an explanation and proof for your answer to receive full credit.”

I saw that someone already asked this question on this website, however the answer that was given apparently wasn’t correct. And even so, I still didn’t know how to actually answer the question for myself. I’d appreciate if someone could help me soon, because I really have to finish this test soon. Thank you :>