Time management is essential in daily life for the following three reasons:
1. Increases Productivity – Proper time management allows you to complete tasks efficiently, leading to higher productivity.
2. Reduces Stress – By managing time effectively, you can avoid last-minute rushes and reduce feelings of stress and pressure.
3. Improves Work-Life Balance – Managing your time well helps you allocate time for both work and personal life, leading to a healthier, more balanced lifestyle.
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.