EASY READ Shapes

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  What are 2D shapes?

  When shapes are flat, they are called two-dimensional (2D) shapes. They include squares, rectangles, triangles, circles and polygons. 2D shapes are made up of lines, called sides...

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  What are 3D shapes?

  A three-dimensional (3D) object is solid rather than flat. It can be measured in three different directions: length, width and depth. Cubes, pyramids, spheres, cylinders and cones...

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  What is symmetry?

  When one side of a shape is an exact mirror image of the other, this is called reflective symmetry. You can place a mirror across the middle of a symmetrical shape, and see the...

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  How do we work out the area of squares, rectangles and triangles?

  Area is the space that a 2D, or flat, shape takes up. To work out the area of different shapes, we use sets of instructions called formulae. ​​​​​​​Area is measured...

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  What are angles?

  When two lines meet (touch) at a point, the space between them is called an angle. Angles are measured in degrees, or °. The angles along a straight line always add up to 180°...

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  What is Pythagoras' theorem?

  Pythagoras was a Greek mathematician who lived 2500 years ago. He made an important discovery about right-angled triangles. The length of the triangle's longest side, known as the...

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  What are the parts of a circle called?

  Circles are round shapes with only one side. Each point on the circle’s perimeter (its edge) is an equal distance from the centre. The length of a circle's perimeter is called...

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  What is pi?

  Whatever size a circle is, we can find out its circumference by multiplying its diameter by the value π. This symbol is the letter "pi" in the Greek alphabet, and it represents a...

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