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Geometry and Measures

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Area of Compound Shapes

Geometry and Measures Area of Compound Shapes
Courses Overview

🎬 Video Tutorial

  • (0:01) Definition of Compound Shape: A compound shape is formed by combining simple shapes (e.g., rectangles, triangles, circles).
  • (0:24) Method and Examples for Finding Area: Break down the compound shape, calculate each simple shape’s area, and then add or subtract as necessary based on the layout of the compound shape.
  • (1:50) Application – Painting Cost Calculation: Calculate the area of a wall minus a door and circular window, then multiply by cost per square metre.

📂 Revision Cards

Diagram explaining how to find the area of a compound shape by breaking it into simpler shapes, then summing or subtracting their areas.
1) How to Find Area of Compound Shape
Diagram showing the area of a compound shape made of two rectangles with dimensions and steps for calculating total area, totalling 12 square metres.
2) Example 1
Diagram showing a compound shape composed of a rectangle and a right-angled triangle, with their respective and total areas calculation.
3) Example 2
Diagram showing the calculation of the shaded area of a wall, excluding a door and window, with a total painting cost of £46 at £5 per square metre.
4) Application

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