:::::An edge of cube (b) has twice the length of an edge of cube (a). The scale factor f = 2.
:::::An edge of cube (b) has twice the length of an edge of cube (a). The scale factor f = 2.
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[[File:QMFig 7.2new.jpg|thumb|'''Fig 7.2 Three approximately isometric breeds of dog''']]
:::::'''Fig 7.2 Three approximately isometric breeds of dog'''
:::::'''Fig 7.2 Three approximately isometric breeds of dog'''
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:::::Outline of a Great Dane (a), a Fox Terrier (b), and a Chihuahua (c). The height at the withers for each dog is = 80 cm, = 40 cm, = 20 cm. Therefore the scale factor for (a) and (b), and for (b) and (c) is f = 2; for (a) and (c) the scale factor f = 4.
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:::::Outline of a Great Dane (a), a Fox Terrier (b), and a Chihuahua (c). The height at the withers for each dog is = 80 cm, = 40 cm, = 20 cm. Therefore the scale factor for (a) and (b), and for (b) and (c) is f = 2; for (a) and (c) the scale factor f = 4.