Give me  the method of this chapter surface areas and volumes  of ncert class 10 . Find the best solution of the exercise 13.1 question number 9 . How i solve this question quickly and easily give me the simplest method of this question.A wooden article was made by scooping out a hemisphere from each end of a solid cylinder, as shown in figure. If the height of the cylinder is 10 cm, and its base is of radius 3.5 cm, find the total surface area of the article.