Given a cylindrical tank, in which situation will you find surface area and in which situation volume.(a)  To find how much it can hold.(b)  Number of cement bags required to plaster it.(c)  To find the number of smaller tanks that can be filled with water from it.

Explanation

To solve the question regarding when to use surface area and when to use volume for a cylindrical tank, we can break it down into three situations:

### Step-by-Step Solution:

1. **Situation (a): To find how much it can hold.**
- **Solution:** To determine how much water the cylindrical tank can hold, we need to calculate its volume. The volume of a cylinder is given by the formula:
\[
V = \pi r^2 h
...