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Introducing engineering

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Figure 61 comprises two photographs labelled 'a' and 'b'. Photograph 'a' shows a plastic bucket complete with a plastic handle. The bucket has a traditional shape with a wider top tapering to a smaller base. There is a rim around the top of the bucket. The plastic handle has a semi-circular shape and its ends are connected to integral supports moulded just below the rim of the bucket. Photograph 'b' shows a metallic object. The view is such that it is difficult to discern its shape. It is definitely not flat and looks like a deep tray except that it has a relatively large lip around its edge and the middle surface is not flat either. The middle surface looks contoured and there are additional ridges and indentations.

 4.2.3 Classifying shapes