Patience is the ability to remain calm and composed, even in difficult situations. Ravi’s ability to remain calm and listen to the customer’s concerns shows patience, which is an essential quality in customer service.
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.