To apply face powder, cleanse and moisturize the skin, then use a brush, puff, or sponge to pick up the powder. Gently pat or sweep it over the face, focusing on oily areas, for a smooth, matte finish.
On the day of her examination, Riya sharpened her pencil from both ends as shown below. 
The diameter of the cylindrical and conical part of the pencil is 4.2 mm. If the height of each conical part is 2.8 mm and the length of the entire pencil is 105.6 mm, find the total surface area of the pencil.