Area of Composite Shapes

How do you find the area of composite shapes?

A composite shape is made up of two or more shapes attached together. The process of calculating the area of composite shapes in Prelim Standard Math is below:

1. Divide the composite shape into two or more plane shapes
2. Calculate the area of each plane shape
3. Add or subtract the area of the plane ships
4. Write the answer to the specified level of accuracy

How to divide composite shapes

The video below explains how to divide composite shapes and work out the area from the given information.

Calculating different types of composite shapes

The following videos explain how to calculate the area of different types of composite shapes.

Part 1: composite shape composed of triangle and rectangle

Part 2: composite shape composed of a parallelogram with a square cut out