 
        Shapes are all around us — from the triangles on road signs to the circles in wheels. Learning about them helps us understand space, design, and everyday objects.
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You can find more about this topic by visiting  BBC Bitesize - Recognise and describe 3D shapes
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 So triangles, squares, rectangles and pentagons are all polygons  | 
 To help remember this, think of an octopus with 8 legs | ||||||||||||||||||||||||
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 A heptagon has 7 sides and a heptagram is a star with 7 points | 
 A regular polygon has all sides equal | ||||||||||||||||||||||||
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 An equilateral triangle has angles of 60o at each of its corners | 
 An isosceles triangle has 2 equal angles which are opposite to 2 sides of equal length | ||||||||||||||||||||||||
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 Cubes and cuboids are both polyhedrons | 
 The diameter is twice the radius | ||||||||||||||||||||||||
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 Tetrahedrons are similar to pyramids, but pyramids have 5 faces, one of which is a square  | 
 There are 360o in a full turn so a quarter turn will be 90o |