1. Ramesh, a juice seller has set up his juice shop. He has three types of glasses of inner diameter 5 cm to serve the customers. The height of the glasses is 10 cm. (use π = 3.14)

He decided to serve the customer in “A” type of glasses.
1. Find the volume of glass of type A.
2. Which glass has the minimum capacity?
3. Which mathematical concept is used in above problem?
4. By choosing a glass of type A, which value is depicted by juice seller Ramesh?