Finding the Area of Irregular Shapes
11+ Maths, topic 8.2.4
Finding the Area of an Irregular Shape
You may be asked to find the area of an irregular shape. This shape will be a combination of different sized rectangles.
Example problem
- Find the area of this irregular shape.
Split the shape up
- To work out the area, imagine this shape is two rectangles stuck together.
Work out the area of rectangle A
Work out the area of rectangle B
Work out total area
Test yourself on Finding the Area of Irregular Shapes
What's the area of rectangle A?
What's the area of rectangle B?
What's the area of rectangle C?
What's the area of shape A?
What's the area of shape C?