REVISION NOTES
IGCSE Edexcel Mathematics A
a
4.9 Mensuration of 2D Shapes
4.9.1 Convert measurements within the metric system to include linear and area units
![edexcel_igcse_mathematics a_topic 33_mensuration of 2D shapes_001_Converting Metric Units - Length](https://resource.studiaacademy.com/wp-content/uploads/2022/05/edexcel_igcse_mathematics-a_topic-33_mensuration-of-2D-shapes_001_Converting-Metric-Units-Length.png)
![edexcel_igcse_mathematics a_topic 33_mensuration of 2D shapes_003_Converting Metric Units - Volume](https://resource.studiaacademy.com/wp-content/uploads/2022/05/edexcel_igcse_mathematics-a_topic-33_mensuration-of-2D-shapes_003_Converting-Metric-Units-Volume.png)
![edexcel_igcse_mathematics a_topic 33_mensuration of 2D shapes_002_Converting Metric Units - Area](https://resource.studiaacademy.com/wp-content/uploads/2023/08/edexcel_igcse_mathematics-a_topic-33_mensuration-of-2D-shapes_002_Converting-Metric-Units-Area.png)
4.9.2 Find the perimeter of shapes made from triangles and rectangles
![edexcel_igcse_mathematics a_topic 33_mensuration of 2D shapes_004_Perimeter](https://resource.studiaacademy.com/wp-content/uploads/2022/05/edexcel_igcse_mathematics-a_topic-33_mensuration-of-2D-shapes_004_Perimeter.png)
4.9.3 Find the area of simple shapes using the formulae for the areas of triangles and rectangles
![edexcel_igcse_mathematics a_topic 33_mensuration of 2D shapes_005_Area](https://resource.studiaacademy.com/wp-content/uploads/2022/05/edexcel_igcse_mathematics-a_topic-33_mensuration-of-2D-shapes_005_Area.png)
4.9.4 Find the area of parallelograms and trapezia
![](https://resource.studiaacademy.com/wp-content/uploads/2022/10/Topic-33_006_MATHS-06-1-1.png)
4.9.5 Find circumferences and areas of circles using relevant formulae; find perimeters and areas of semicircles
![edexcel_igcse_mathematics a_topic 33_mensuration of 2D shapes_007_Circle](https://resource.studiaacademy.com/wp-content/uploads/2022/05/edexcel_igcse_mathematics-a_topic-33_mensuration-of-2D-shapes_007_Circle.png)
![edexcel_igcse_mathematics a_topic 33_mensuration of 2D shapes_008_Semicircle](https://resource.studiaacademy.com/wp-content/uploads/2022/05/edexcel_igcse_mathematics-a_topic-33_mensuration-of-2D-shapes_008_Semicircle.png)
4.9.6 Find perimeters and areas of sectors of circles (Higher Tier Only)
![edexcel_igcse_mathematics a_topic 33_mensuration of 2D shapes_009_Perimeter and Area of Sectors](https://resource.studiaacademy.com/wp-content/uploads/2022/10/Perimeter-and-Area-of-Sectors.png)