9. A wooden article was made by scooping out a hemisphere from each end of a solid cylinder. 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.
Height of Cylinder = h =10 cm
Radius of Cylinder = Radius of Hemispheres = r = 3.5 cm
Total Surface area of Article = Curved Surface Area of Cylinder + Inner Surface Area of Ist Hemisphere + Inner Surface Area of 2nd Hemisphere