**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.

**Solution:**

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**