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Year 1 · Shapes & Geometry

Name 3D shapes

We name 2D shapes by how many sides and corners they have.

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How to do it

  1. Count the sides.
  2. Count the corners.
  3. 3 sides: triangle. 4 sides: square or rectangle. No corners: circle.

Worked example

A shape with 3 straight sides
3 sides, 3 corners
Triangle

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A square has 4 equal sides; a rectangle has 2 long and 2 short.

Practise Name 3D shapes properly

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