Question

Question 1
Given a cylindrical tank, in which situation will you find the 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.

Answer 1

We find area when a region covered by a boundary, such as outer and inner surface area of cylinder, a cone, a sphere and surface of wall or floor is required.
When the amount of space occupied by an object such as water, milk, coffee, tea, etc. is needed, we need to find out volume of the object in that case.
(a) Volume (b) Surface area (c) Volume