Word Problems Involving Areas of Plane Figures - JSS3 Mathematics Lesson Note

These problems involve real-world scenarios where knowledge of area calculations is necessary. For example:

Example:

A circular swimming pool has a radius of 5 meters. What is the area of the pool?

To solve:

Use the formula for the area of a circle: 

Area=𝜋𝑟^2

Substitute 

𝑟=5 meters.

Area=𝜋×(5 m)2

Area =𝜋×25

Area=25𝜋

Area ≈ 78.54 square meters