Enlargement Enlargement Centre (0,0) Scale factor 2.

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Presentation transcript:

Enlargement Enlargement Centre (0,0) Scale factor 2

BD = 3 CE = 9 = 3 AB = 2 AC = 6 Scale Factor = AC = AB 6 2 = 3 Scale Factor = CE = BD 9 3 = 3 D A C B

Divide the distance from the centre of enlargement to any point on the image by the distance to the same point on the object TO FIND THE SCALE FACTOR OR Either divide any side of the image by the equivalent side in the object

To find the centre of enlargement Join up the same point on both the object and the image Centre of enlargement Repeat with 2 more equivalent points Where they cross is the centre of enlargement