Triangles - 2-dimensional shapes - CCEA - GCSE Maths Revision

2-dimensional shapes are flat. The perimeter of a 2D shape is the total distance around the outside of the shape.

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2D Shapes - GCSE Maths - Steps, Examples & Worksheet

2-dimensional shapes - 2-dimensional shapes - CCEA - GCSE Maths Revision - CCEA - BBC Bitesize

2D Shapes - GCSE Maths - Steps, Examples & Worksheet

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Triangles - 2-dimensional shapes - CCEA - GCSE Maths Revision

Similar triangles - Higher - Congruent and similar shapes - CCEA - GCSE Maths Revision - CCEA - BBC Bitesize

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