Perimeter of a Polygon
Learn how to find the perimeter of rectangles, squares, and irregular shapes. Let’s get started! 🚀
Video Lesson
Watch and learn the basics
Flashcards
Review key concepts visually
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🛎️ What is Perimeter?
- The perimeter of a polygon is the total length of its boundary.
- For a rectangle: perimeter = 2 × (length + width).
- For a square: perimeter = 4 × side length.
🛎️ Perimeter of Triangles
- The perimeter of a triangle is the sum of its three sides.
- For an isosceles triangle: Perimeter = 2 × equal side + base
- For an equilateral triangle: Perimeter = 3 × side length
🛎️ Perimeter of Complex Shapes
- Add the lengths of the edges around the outside of the shape.
- You can also add lengths together to think of the shape as a rectangle.
Practice Questions
Test your understanding
Interactive Activity
Visualise how to calculate the perimeter of different polygons step by step
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